Surface Area and Volume Solved Examples Que 1: Find the lateral surface area of a cylinder with a base radius of 10 cm and height 20 cm. Solution: Given radius r = 10, height h = 20 LSA = 2 π rh ...

The volume can be found by calculating the volume of the whole sphere and dividing by 2 or by halving the formula: Volume of hemisphere \ (= \frac {2} {3}πr^3\) ...

Calculate the volume of everyday items such as cuboids, prisms and pyramids. Use your knowledge of area to calculate the surface area of 3D shapes.