ABCD ABCD\,ABCD is a rectangle. M M\,M is the midpoint of the side ADADAD. Lines BM BM\,BM and CM CM\,CM are drawn.
Prove that angle ABM ABM\,ABM is equal to angle DCMDCMDCM.
20 exam-style questions on AQA GCSE Maths Congruent Triangles. Each one has a worked solution and a mark scheme showing where the marks go.