Golden Ratio is Irrational from a Regular Pentagon (visual proof)
1:00
Root Two is Irrational Visually
4:13
Pi Times Phi using a Regular Icosagon Area (visual proof)
4:40
Visual irrationality proofs from the carpets theorem (root 2 and root 3)
5:59
Root 2 is Irrational from Isosceles Triangle (visual proof)
3:13
A Golden Ratio Infinite Series Dissection (visual proof)
6:07
[Think Through Geometry] Problems 16 to 20
3:24
Dividing a Circle into Seven Equal Areas (visual proof)
3:28