The diagram shows triangle ABCABCABC.
ADB ADB\,ADB is a straight line.
the size of angle BCDBCDBCD : the size of angle ACD=2:3ACD = 2 : 3ACD=2:3
Work out the size of angle ADCADCADC.
93 exam-style questions on OCR GCSE Maths Ratio. Each one has a worked solution and a mark scheme showing where the marks go.