39:15

revision part3

38:49

gravitational force part1

39:12

revision part 4

30:18

3D Shapes - Faces, Edges, and Vertices - Euler's Formula - Geometry

29:41

Surface Area of a Pyramid & Volume of Square Pyramids & Triangular Pyramids

37:53

revision first term

28:47

the cell prep1 part 1

27:41

Triangular Prism - Volume, Surface Area, Base and Lateral Area Formula, Basic Geometry