7 Days: Humans flying near the moon, Gmail address change, and Instagram's paid version7 ...

Our '7 Days' weekly tech roundup brings the juiciest announcements. Read about humans flying near the moon, Netflix refunding ...
BBC

3d shapes

Learn about 3D shapes and their properties. Properties of 3D shapes Learn about faces, edges and vertices. What is volume? Find out how the volume of a 3D shape can be calculated by counting cubes.