A wooden pillar is in the shape of a cylinder with a radius of r r\,r cm and a height of 8 cm.
The volume of the pillar is 242π 242\pi\,242π cm3^33.
Find the value of rrr.
91 exam-style questions on Edexcel GCSE Maths Cylinders. Each one has a worked solution and a mark scheme showing where the marks go.