ABCD ABCD\,ABCD is a quadrilateral where AB=ADAB = ADAB=AD and BC=CDBC = CDBC=CD.
Prove that angle ABC ABC\,ABC is equal to angle ADCADCADC.
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.