Leaving Cert Higher Level Maths 2020 Paper 2 Question 3 Solutions

This is question 3 from the leaving cert higher level maths 2020 paper 2. It is a trigonometry and geometry question. In part (a) we use the sine rule twice to find an unknown length and in part (b) we congruent triangles, the theorem of Pythagoras and ratios to find the ratio between the area of two circles.