Help your students prepare for their Maths GCSE with this free surface area and volume of prisms worksheet of 43 questions and answers
A prism shape is a polyhedron (a 3D shape made from polygons) with a constant cross section through one dimension. A prism shape has two congruent faces (identical ends). Examples of prisms include rectangular prisms and triangular prisms. Shapes such as square pyramids are not prisms because the cross section is not constant throughout the shape.
To find the volume of a prism, we find the cross-sectional area and multiply it by the length. Volume is measured in units cubed.
To find the surface area of a prism, we find the area of each face and add the areas together. Surface area is measured in units squared.
To find the volume or surface area of 3d shapes which are not prisms we can use given formulae. For example, the formula for the surface area of a sphere is 4r2.
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