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Interactive video lesson plan for: Guess the diagonal - Brain Teaser

Activity overview:

Try to solve this brain teaser in less than a minute. You must guess the diagonal inside of the circle. There is enough information given which allows you to find the length of the diagonal in less than a minute.

My name is Chris and my passion is to teach math. Learning should never be a struggle which is why I make all my videos as simple and fun as possible. I cover all subjects from basic level math through upper level calculus and statistics. I also make brain teaser and Rubik's cube videos for fun.

Here are some of my other brain teasers as well.

Heaven and hell - Brain Teaser
https://www.youtube.com/watch?v=YOgKI0HWCnA

Switch or Stay - Brain Teaser
https://www.youtube.com/watch?v=ruX49qla1Ig

Don't checkmate - Brain Teaser
https://www.youtube.com/watch?v=fuEjP3XfaXA

Counterfeit coins - Brain Teaser
https://www.youtube.com/watch?v=d6eF98_4lHU

Bisecting Yin and Yang - Brain Teaser
https://www.youtube.com/watch?v=HtnPUjAjn3E

Two Burning Ropes - Brain Teaser
https://www.youtube.com/watch?v=IyGV5Ry9pQw

Channel Page - http://Youtube.com/MathMeeting
Facebook Page - http://facebook.com/MathMeeting

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