Search Results: " triangle geometry"

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07:40 Popular
Comparing Numbers Represented In Different Ways | 4th Grade | Khan Academy

748 views / 0 likes - added 8 years ago

Examples of Khan Academy practice problems where you compare decimals, fractions, and number diagrams. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-decimals/cc-4th-compare-decimal
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I made a robot to cut my hair with scissors

302 views / 0 likes - added 3 years ago

My hair is getting too long so I decided to build a robot to cut it for me. To support future projects like this check out my patreon: http://patreon.com/stuffmadehereIf you like this project you'll probably like my iPad case that lets you see blindfolded
02:35 Popular
Comparing Fractions Visually With A Bar | Fractions | 4th Grade | Khan Academy

1,111 views / 0 likes - added 8 years ago

Learn how to compare fractions with unlike denominators by drawing bars Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-comparing-fractions-visually/e/visually
05:39 Popular
Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD

794 views / 0 likes - added 5 years ago

Thanks to Eric from Miami for suggesting this problem and sending a solution! The diagram shows a quadrilateral ABCD with the values for some angles and the length of AB. Can you figure out the area of ABCD? Subscribe: https://www.youtube.com/user/MindYou
04:11 Popular
Decomposing Hundredths Into Tenths And Hundredths | 4th Grade | Khan Academy

1,484 views / 0 likes - added 8 years ago

Learn how to decompose a fraction into tenths and hundredths. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-fractions-unlike-denom/e/decompose-fractions-with
05:55 Popular
"Impossible" Logic Puzzle - How Many Liars Are At The Party?

814 views / 0 likes - added 7 years ago

A party has 100 people who are either liars are truth tellers. Liars always lie and truth tellers always say the truth. After the party you ask each person, "How many truth tellers did you shake hands with?" Each person gives a different answer from 0 to
03:28 Popular
Flower Math Problem - Adults Stumped By Question For Kids In China

1,397 views / 2 likes - added 7 years ago

This problem is said to come from a test given to a Chinese kindergarten class (5 year olds). It was posted online and caused a lot of debate as adults were stumped about the correct answer, some saying it is impossible. Can you figure it out? This video
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Moving Faster Than The Speed Of Light? Special Relativity Velocity Addition Formula

687 views / 0 likes - added 7 years ago

If train A is moving towards train B, and each train moves at 75% the speed of light (relative to the ground), will an observer on train A think that train B is moving at 150% the speed of light? But nothing moves faster than the speed of light, so what i
04:53 Popular
Can You Solve The Friendship Riddle?

1,309 views / 0 likes - added 7 years ago

In a group of 6 people, you might find that some people are friends on Facebook, or you might find out that no one is friends on Facebook. Show that there is always a group of 3 people in which either: (a) all 3 people are mutual friends or (b) the 3 peop
01:47 Popular
Decompose Hundredths On Number Line | Fractions | 4th Grade | Khan Academy

1,581 views / 0 likes - added 8 years ago

Learn how to decompose a fraction with hundredths on a number line. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-fractions-unlike-denom/e/decompose-fraction
01:49 Popular
This Matchstick Puzzle Is

858 views / 1 likes - added 7 years ago

This classic matchstick/toothpick puzzle is making the rounds because it is supposedly "extremely hard" for adults. Can you make 3 squares by moving 3 matchsticks? You cannot break any of the sticks, the resulting squares must be of equal size, and each t
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05:13
Real Star Trek Like Transporter. Why This 3D Light Printer Is A HUGE Game Changer

497 views / 0 likes - added 5 years ago

Computed Axial Lithography is the first printer of it's kind. It can shape objects, all-at-once, using specialized synthetic resin and rays of light. We Can Now 3D Print in Suspended Gravity (And It’s Mesmerizing!) - https://youtu.be/FgCedvTbKso Read More
06:06 Popular
Equivalent Fractions And Different Wholes | Fractions | 4th Grade | Khan Academy

812 views / 0 likes - added 8 years ago

Learn how two fractions are equivalent only if they refer to the same whole. For example, 1/2 of a small circle is not the same as 1/2 of a big circle. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-
07:49 Popular
Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained

1,079 views / 0 likes - added 7 years ago

This problem has been shared millions of times on Twitter/Facebook with the claim "99% fail" to solve it and that only a genius could find the correct answer. If 9 = 72, 8 = 56, 7 = 42, 6 = 30, 5 = 20, then 3 = ? In this video I explain what many people b
06:01 Popular
Can You Solve The Viral 1 + 4 = 5 Puzzle? The Correct Answer Explained

11.8k views / 1 likes - added 7 years ago

This problem was shared on Facebook with the claim that only one in a thousand could figure it out. It went viral and generated over 3 million comments. Here is the problem. If 1 + 4 = 5, 2 + 5 = 12, 3 + 6 = 21, what is 8 + 11 = ? This video presents what
04:20 Popular
Visually Converting From Tenths To Hundredths | 4th Grade | Khan Academy

1,195 views / 0 likes - added 8 years ago

Learn how to convert fractions from tenths to hundredths using grid diagrams. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-fractions-unlike-denom/e/equivale
04:07
These Tiny Robots Will Live Inside You? - Nanobots Explained

282 views / 0 likes - added 2 years ago

Nanobots are the future of medicine, but how do these tiny robots work?Visit the Foresight Institute to learn about their work on advancing technology at https://foresight.org/Hi there and welcome to Life Noggin!Imagine a world where, if you get sick, doc
07:25 Popular
Can You Solve The Race To December 31 Riddle?

717 views / 0 likes - added 7 years ago

Here's a fun game you can play with another person. The game starts on January 1. Each of two players takes turns calling out another date. The new date has to be a later date in the year with either the same month OR the same day (from January 1, a playe
03:21 Popular
Can You Solve A Puzzle That Fooled Richard Feynman?

711 views / 0 likes - added 5 years ago

What is the radius of the circle, in simplest terms involving a, b, and c? I read that even the great mind Richard Feynman made a mistake. Watch the video to learn the common mistake and what the correct answer is. Source Feynman story http://web.media.mi
05:48
What Is The Area? "You Should Be Able To Solve This"

509 views / 0 likes - added 5 years ago

Thanks to Reio in Romania for emailing me this fun problem! What is the area? This puzzle was shared with the tagline "you should be able to solve this." Solution to 5th grade Chinese challenge problem https://youtu.be/OuJQaxZvlYs My blog post for this vi
13:40 Popular
BEST Way To Play Memory (Card Game) - WIN Using Math

955 views / 0 likes - added 7 years ago

The card game of memory (aka concentration) is a children's game to test visual recall. Strategically you can figure out the best move by doing probability calculations. This video explains the best possible way to play the game mathematically. You can le
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03:17
Can YOU Solve It? This Question Stumped 75% Of PhD Economists

610 views / 0 likes - added 7 years ago

Introductory economics courses cover the concept of an opportunity cost. Can you figure out the opportunity cost for the problem in the video? This video presents a question that surprisingly more than 75% of PhD economists did not answer correctly. Paper
07:14
How the 3-point line is breaking basketball

285 views / 1 likes - added 2 years ago

The game is at a turning point. Should the rules be changed?Subscribe and turn on notifications so you don't miss any videos: http://goo.gl/0bsAjOThe NBA introduced the 3-point line in 1979, and not much changed right away. Players werent used to shooting
09:11 Popular
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

855 views / 0 likes - added 7 years ago

Start with a unit square (a rectangle with both sides equal to 1, call it R1). Attach a rectangle of area 1 to its right side, then attach a rectangle of area 1 to its top. The border of this new shape is another rectangle, call it R2. We can repeat the p
03:48 Popular
Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

1,478 views / 0 likes - added 7 years ago

The Harvard admissions exam in 1869 included this algebra problem: "A man bought a watch, a chain, and a locket for $216. The watch and locket together cost three times as much as the chain, and the chain and locket together cost half as much as the watch
06:24
Can You Solve The Missing Sock Puzzle?

619 views / 0 likes - added 7 years ago

A statistician keeps a simple wardrobe. He only purchases pairs of black socks and white socks, and he keeps all of the socks in a pile in the drawer. Recently one of the socks was lost in the laundry. The socks have a mathematical property. If you select
02:51 Popular
The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

1,728 views / 2 likes - added 7 years ago

A lot of people are arguing over the correct answer to this algebra problem involving horses, horseshoes, and boots. A Facebook post with this problem has over 500,000 comments. Can you figure it out? In this video I explain the correct answer. Blog post:
11:27 Popular
Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained

3,056 views / 1 likes - added 7 years ago

If 11x11=4 and 22x22=16, what is 33x33=? This puzzle has been shared with the claim that only geniuses can solve it. It has gotten millions of views on the internet and Facebook as people have debated the correct answer. In this video I present what many
05:26
Can You Solve The Red Ball Lottery Puzzle?

673 views / 0 likes - added 7 years ago

(Same video without the music: https://youtu.be/sz5oLEpc8xE) This problem involves 100 red balls, 100 blue balls, and 2 urns. First you distribute all the balls between the 2 urns, placing at least 1 ball in each urn. Next, you select an urn at random, an
07:21 Popular
Can You Solve The Magical Pond Puzzle?

1,037 views / 1 likes - added 7 years ago

(Same video with music: https://youtu.be/nF-Gpk0ZpRk) You visit a shrine that has 3 temples. Before each temple, you have to swim in a magical pond. Your path is pond-temple1-pond-temple2-pond-temple 3. Each time you swim, the pond magically triples the n
02:37 Popular
Adults Stumped By Maths Questions For 15 Year Olds. Can You Solve Them?

800 views / 0 likes - added 7 years ago

How hard are math tests? A survey asked 2,000 UK adults to answer sample GCSE test questions intended for 15 year old students. On average, the survey questions were missed by about 40% of adults. Can you solve them? The video presents 2 questions that ma
03:09
Can You Solve The Marriage Logic Problem? 80% Fail

680 views / 0 likes - added 7 years ago

Surveys have found 80 percent get this logic problem wrong. Alice is looking at Bob, and Bob is looking at Charlie. Alice is married; Charlie is not. Is a married person looking at an unmarried person? Answer choices are A) Yes, B) No, and C) Cannot be de
05:33 Popular
What is 6÷2(1+2) = ? The Correct Answer Explained

887 views / 0 likes - added 7 years ago

What is 6÷2(1+2) = ? This problem went viral and generated millions of comments on Facebook, Twitter, YouTube and social media sites. I explain how to get the correct answer by using the modern interpretation of the order of operations. I also explain how
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02:57 Popular
Can You Solve This Crazy Equation? Ramanujan's Radical Brain Teaser

1,099 views / 0 likes - added 7 years ago

In 1911, Srinivasa Ramanujan posed this problem involving an infinite nested radical (a never-ending expression that has square roots inside of square roots). Can you figure out how to simplify the equation? The video presents an intuitive solution. Techn
03:54 Popular
What's The Best Soup Can Size? The Optimal Cylinder Puzzle

802 views / 0 likes - added 7 years ago

A cylindrical can with volume V can be made in different ways. The cylinder can be wide and short (large radius and small height), or it can be narrower and taller (small radius and larger height). Which shape uses the least material? That is, which can h
03:04
Why Is There So Much Land In The North?

193 views / 0 likes - added 1 year ago

Watch the new season of MinuteBody - and get access to both CuriosityStream and Nebula - at https://curiositystream.com/minuteearthMost of Earths land is currently in the northern hemisphere because we happen to exist in a time where uneven heating in the
07:40 Popular
Can You Solve The 21 Flags Game From Survivor?

892 views / 1 likes - added 7 years ago

Contestants on the TV show "Survivor" faced off in a series of challenges for a grand prize of $1 million. Most of the challenges were physical like hiking many miles or diving underwater. But one challenge was mathematical. The game had 21 flags and cont
08:51 Popular
The Viral Balloon Puzzle - The REAL Answer Explained (Using Ph.D. Level Math)

772 views / 0 likes - added 5 years ago

They say only geniuses can solve this puzzle, and this time they are correct. Thanks to all patrons! Special thanks to: Shrihari Puranik Yildiz Kabaran Kyle My blog post for this video https://wp.me/p6aMk-82U Sources https://puzzling.stackexchange.com/que
05:52 Popular
Can You Solve The "MEANEST" SAT Test Question Ever?

705 views / 0 likes - added 5 years ago

On the SAT exam, you have about 2 minutes to read and solve each math question. This one about averages can send you in a loop, unless you approach it systematically. In the video I also explain a shortcut to help you solve this type of problem quickly. S
02:06 Popular
Can You Solve The Viral Matchstick Puzzle 6 + 4 = 4?

3,485 views / 0 likes - added 7 years ago

Can you fix 6 + 4 = 4 by moving 1 matchstick? This problem has gone viral on Facebook, with one post having over 400,000 shares. The ground rules are you cannot break a stick, it should be an equality (=), and you have to use 7-segment numbers (the block
06:18 Popular
Can You Solve The Diluted Wine Puzzle?

766 views / 1 likes - added 7 years ago

A servant has a method to steal wine. He removes 3 cups from a barrel of wine and replaces it with 3 cups of water. The next day he wants more wine, so he does the same thing: he removes 3 cups from the same barrel (now with diluted wine) and replaces it
1:06:07 Popular
Shapes Adventure Plus More | Nursery Rhymes Collection, Teach Toddlers & Kindergarten Shape Names

1,008 views / 0 likes - added 8 years ago

Princess Shapes takes Kids on a 1 Hour Musical Adventure into Outer Space and Beyond. It's Catchy Songs for Toddlers & Kindergarten Kids that Teach Shape Names by Singing. Princess Shapes "Diamond Heart Song" 0:08 Wheels on the Bus (Red Bus) 2:57 Pink Hea
04:30 Popular
Adults Are Arguing About This 3rd Grade Math Problem

894 views / 0 likes - added 7 years ago

"If Sue runs around the track twice, and John runs around the track four times more than Sue, how many times does John run around the track?" This problem was given to 3rd graders. A parent disagreed with the answer the teacher was marking. After it was p
11:57
The Wallis Formula For π

586 views / 0 likes - added 7 years ago

Start with the pair of fractions (2/1)(2/3). Now increment each number by 2 to get the pair of fractions (4/3)(4/5). Repeat this to get the next pair, and repeat this infinitely many times. If you then multiply all the fractions, you get a marvelous value
07:47 Popular
Can You Solve The Probability The Newborn Is A Boy? Many Fail This Interview Question

828 views / 0 likes - added 7 years ago

This problem has been asked in job interviews. On the morning of January 1, a hospital nursery has 3 boys and some number of girls. That night, a woman gives birth to a child, and the child is placed in the nursery. On January 2, a statistician conducts a
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How ESAs Dark Energy Telescope Will Map the Dark Universe

430 views / 0 likes - added 4 years ago

ESA is building its first space telescope to investigate how dark energy and dark matter control our universe. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Countdown to Launch: http://bit.ly/CTLplaylist Thumbnail Credit: Thales Alenia Spa
07:39 Popular
Can You Solve The Alien Extinction Riddle? Hard Job Interview Question

870 views / 0 likes - added 7 years ago

A single alien lands on Earth. Every day after that, each alien on Earth undergoes a transformation, which could be any of the four equally likely events: (a) the alien dies, (b) the alien does nothing, (c) the alien replicates itself (2 aliens total), (d
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Why Does Smoke Follow You Around a Fire?

182 views / 0 likes - added 2 years ago

Visit http://brilliant.org/scishow/ to get started learning STEM for free, and the first 200 people will get 20% off their annual premium subscription. You know how you somehow end up getting smoke in your eyes wherever you stand around a bonfire? Well, i
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Primitive Technology: Iron knife made from bacteria

179 views / 0 likes - added 1 year ago

Iron knife made from bacteria Subscribe: http://bit.ly/subPT | Never miss a video! Enable ‘ALL’ Notifications! Watch my newsest content: https://youtube.com/playlist?list=PLGnWLXjIDnpBR4xqf3FO-xFFwE-ucq4Fj&playnext=1&index=2 Follow Pri
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There's a Hole at the Bottom of Math

418 views / 1 likes - added 3 years ago

Not everything that is true can be proven. This discovery transformed infinity, changed the course of a world war and led to the modern computer. This video is sponsored by Brilliant. The first 200 people to sign up via https://brilliant.org/veritasium ge
05:27 Popular
Can You Solve The Mind-Bending Self-Counting Sentence Riddle?

960 views / 0 likes - added 7 years ago

"In this sentence, the number of occurrences of the digit 0 is __, of the digit 1 is __, of the digit 2 is __, of the digit 3 is __, of the digit 4 is __, of the digit 5 is __, of the digit 6 is __, of the digit 7 is __, of the digit 8 is __, and of the d
26:11
Which Way Is Down?

386 views / 0 likes - added 3 years ago

BRAIN CANDY LIVE http://www.braincandylive.com/ticketsTHE VSAUCE CURIOSITY BOX: https://www.curiositybox.com/Links to sources and to learn more below!my twitter https://twitter.com/tweetsaucemy instagram https://www.instagram.com/electricpantsThanks to Er
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It took 10 YEARS (But it was worth it) - Amazing Science Gadgets/Toys 2

64 views / 0 likes - added 6 months ago

This video contains many interesting science gadgets, satisfying science experiments, innovative science toys, amazing science toys/gadgets and many more DIY, handmade physics toys, gadgets available on amazon, etsy, educational innovations, kickstarter.S
05:44
Doggerland: A Real-Life Atlantis

331 views / 0 likes - added 3 years ago

Go to http://Brilliant.org/SciShow to try their Geometry Fundamentals course. The first 200 subscribers get 20% off an annual Premium subscription.Though we probably wont find a literal Atlantis beneath the sea, that doesnt mean that a human settlement ha
1:12:01 Popular
"Super Christmas" Songs | Jingle Bells, Santa Claus | Christmas Songs for Kids | Children's Songs

1,645 views / 0 likes - added 7 years ago

This Kid's Christmas Compilation is Stuffed Like a Stocking with Xmas Carols, Colors Songs, Shapes Learning Videos & Busy Beavers "SUPER CIRCUS 3D" Clips. Children will Love the Christmas Classics Like "Jingle Bells", "'Twas the Night Before Christmas" &
1:12:01 Popular
Play Doh Learn Colors Surprise | ABC Songs for Children, Best Toddler Learning, Learn Numbers, Toys

1,430 views / 0 likes - added 7 years ago

Billy & Betty Beaver Teach Colors with Dripping Paint, Surprise Eggs, Cars & Play Dough. Children will Learn Colors, Shapes, ABCs & Nursery Rhymes with this Cute Collection of Catchy Songs & Colorful Lessons by Busy Beavers. Learn Colors Surprise (Red) 00
1:12:01 Popular
Play Doh Colors Surprise | ABC Songs for Children, Best Toddler Learning, Learn Colors, Toys

1,376 views / 0 likes - added 7 years ago

Billy & Betty Beaver Open Surprise Eggs with Play Dough Inside & Learn Color Names. Children will Learn Colors, Shapes, ABCs & Nursery Rhymes with this Cute Collection of Catchy Songs & Colorful Lessons by Busy Beavers. Play Doh Colors Surprise (Red) 00:0
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ABC Baby Finger Family Songs Surprise | Play Doh Alphabet, Learn Colors Shapes Toys, Busy Beavers

1,789 views / 0 likes - added 7 years ago

Introducing Busy Beavers Brand New 3D Animated Version of Our Smash Hit for Kids "The Family Song". Children will Learn the Words "Mother, Father, Sister, Brother, Grandma & Grandpa" with a Catchy Tune you'll be Singing All Day. Watch this Whole 1 Hour Ki
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Kids Learn Colors with Surprise Eggs & Bus Toys | Wheel on the Bus Song | Teach Colours ABCs Shapes

1,184 views / 0 likes - added 7 years ago

Best Colors Learning Video Compilation for Children to Learn Colors & Shapes with Colorful Play Doh Surprise Eggs. Hop on the Fun Bus & Sing Along to Kid's Favorite Nursery Rhymes "Wheels on the Bus" with our Cute Brand New 3D Animation While Learning ABC
02:57 Popular
Why Do Rivers Curve?

802 views / 1 likes - added 8 years ago

We're now on Patreon! Please support us at: http://www.patreon.com/minuteearth Can you find an oxbow lake in GoogleEarth? Share your findings (pictures or coordinates) on Twitter, Facebook and other social media using the hashtag #oxbowlake And subscribe!
1:12:01 Popular
Play Doh Shapes Surprise | ABC Songs for Children, Kindergarten Kids Learn the Alphabet, Toys

1,439 views / 0 likes - added 7 years ago

Billy & Betty Beaver Open Surprise Eggs with Shapes Inside & Make Colorful Shapes out of Play Doh. Children will Learn Colors & Shape Names with this Cute Collection of Catchy Songs & Engaging Lesson Videos for Toddlers by Busy Beavers. Play Doh Shapes Su
1:12:13 Popular
Surfin' the ABCs | Teach ABC Songs, Learn the Alphabet, 3D Baby Learning Rhymes by Busy Beavers

1,977 views / 0 likes - added 7 years ago

Kids, go on a Learning Adventure with the lovely Betty Beaver & Sing the ABCs with her while Surfing big waves & Swimming with Sea Creatures. This Alphabet Collection is Packed with Children's Favorite Busy Beavers ABC Songs & Learning Games - Sing Along
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SUPER CIRCUS 3D Kid's Olympics | Olympic Playground, Color Balls, Ball Pit Show By Busy Beavers

1,493 views / 0 likes - added 7 years ago

Billy, Betty & their Friends are Back in the Super Circus Arena & have Organized their own Kids' Olympic Games! Watch them Jump, Dive, Ski & Slide into the Giant Colorful Ball Pit with Lots of Surprises. Get into the mood for the Rio 2016 Olympic Games wi
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The Secret of Synchronization

211 views / 0 likes - added 3 years ago

How does order spontaneously arise out of chaos? This video is sponsored by Kiwico go to https://www.kiwico.com/Veritasium50 for 50% off your first month of any crate.An enormous thanks to Prof. Steven Strogatz this video would not have been possible with
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Something Strange Happens When You Follow Einstein's Math

45 views / 0 likes - added 1 month ago

Einstein was wrong about black holes, what else? Use code veritasium at the link below to get an exclusive 60% off an annual Incogni plan: https://incogni.com/veritasium A massive thank you to Prof. Geraint F. Lewis and Prof. Juan Maldacena for their expe

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