The surface area is made up of the end faces and rectangular faces that join them ... 8 × 20 = 160. The volume of the prism is 160 cm³. The cross-section of the prism is a triangle.

Discover how to work out the area of a triangle, by working out the area of a rectangle and then dividing ... in millilitres and litres. What is volume? Find out how the volume of a 3D shape ...

If the container is a square or rectangle, use the ruler or tape ... The volume of a sphere can be found using the formula Volume of a Sphere = 4/3 πr 3 Calculate the volume of a grain of sand.