A wooden doorstop is in the shape of a triangular prism. The cross-section is a right-angled triangle with dimensions 9 cm and 12 cm for the two shorter sides, and 15 cm for the hypotenuse. The doorstop is 25 cm long.
Calculate the volume of the wooden doorstop.
57 exam-style questions on CCEA GCSE Maths Volume of a Prism. Each one has a worked solution and a mark scheme showing where the marks go.