(Geometry) Line Symmetry and Rotational Symmetry Lesson
6:11
O level Math - Rotational Symmetry (Part 1)
29:11
Triangle Congruence Practice
28:43
The ALMOST Platonic Solids
26:19
Perfect Shapes in Higher Dimensions - Numberphile
8:07
Rotational Symmetry
42:34
The Amazing Math behind Colors!
31:33
The Oldest Unsolved Problem in Math
21:12