How big can y be?
![](https://i.ytimg.com/vi/2DqpdrF7aL4/mqdefault.jpg)
12:30
A nice geometry trick!
![](https://i.ytimg.com/vi/ke68ujLun3M/mqdefault.jpg)
15:44
Half of a deathly area...
![](https://i.ytimg.com/vi/xGxSTzaID3k/mqdefault.jpg)
26:45
The Perfect Road for a Square Wheel and How to Design It
![](https://i.ytimg.com/vi/7T6eRPI77vA/mqdefault.jpg)
14:29
Find the missing radius!
![](https://i.ytimg.com/vi/q1iSmAh3n-c/mqdefault.jpg)
18:11
BASIC Calculus – Understand Why Calculus is so POWERFUL!
![](https://i.ytimg.com/vi/60z_hpEAtD8/mqdefault.jpg)
44:23
A Swift Introduction to Geometric Algebra
![](https://i.ytimg.com/vi/RKTqKe4M5wM/mqdefault.jpg)
13:19
What is the radius of 🔴 ?
![](https://i.ytimg.com/vi/i5qTDrVt0yE/mqdefault.jpg)
30:26