Uploaded October 2016 | Updated September 2026, 11 hours ago

---

Test your math IQ with this fun question. There are two 12 sided coins. Find the measure of the angle when the coins are side by side. Each side of the coin is equal length.

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.

Check out all of my other brain teasers.

The Easiest brain teaser that will rack your brain
youtube.com/watch?v=nGNuAHnZRXU

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

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

Cross the river - Brain Teaser
youtube.com/watch?v=vTWfsUZSCXo

Game show - Brain Teaser
youtube.com/watch?v=ruX49qla1Ig

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

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


Channel Page - Youtube.com/MathMeeting
Facebook Page - facebook.com/MathMeeting
Patreon Page - patreon.com/MathMeeting