A wooden display block is carved into a prism with an L-shaped cross-section. The dimensions are shown in the diagram.
Find the total surface area of the block.

Practise Edexcel GCSE Maths Surface Area with exam-style questions for Foundation and Higher tier. 25 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.