Japanese temple geometry puzzle
4:13
Solve for the magic angle
6:36
'Impossible' question stumps students
11:05
Why is πr² the formula for a circle's area?
29:42
Why 4d geometry makes me sad
31:10
the geometry of the third derivative
11:51
Impossible Dutchmen's Wives Puzzle
9:09
¿Puede el agua resolver un laberinto?
9:58