A right-angled triangle XYZ XYZ\,XYZ is shown. The right angle is at vertex YYY. Side XY XY\,XY has a length of 11 cm. Hypotenuse XZ XZ\,XZ has a length of 20 cm.
Calculate the length of the side YZYZYZ.
Give your answer to 1 decimal place.

90 exam-style questions on AQA GCSE Maths Pythagoras. Each one has a worked solution and a mark scheme showing where the marks go.