A slice is cut from a large pizza with center O O\,O and a radius of 15 cm. The outer crust of the slice (arc ABABAB) measures 20 cm in length.
Find the area of the surface of the pizza slice.
30 exam-style questions on AQA GCSE Maths Sector Areas and Arc Lengths. Each one has a worked solution and a mark scheme showing where the marks go.