Cones, spheres and pyramids · Year 10

In Year 10 you learn: volume of cones, pyramids and spheres.

Pyramids, cones and spheres are solids that do not have the same cross-section all the way through. A pyramid or cone holds exactly one third of the prism or cylinder with the same base and height, and a sphere has its own formulas for volume and surface area.

Key facts

• Pyramid: V = ⅓ × base area × height.
• Slant height: l² = r² + h² (Pythagoras).

Other years

• Cones, spheres and pyramids · Year 11