The diagram shows a cylindrical concrete pillar. The pillar has a top and a bottom that both need to be sealed.
6 of these pillars are going to be treated with a protective sealant. Each pillar has a diameter of 60 cm and a height of 2.5 m.
Each bucket of sealant can cover 8 m2.
How many buckets of sealant are needed to treat the 6 pillars?

92 exam-style questions on Edexcel GCSE Maths Cylinders. Each one has a worked solution and a mark scheme showing where the marks go.