In figure Q, P, T , S and R lie on the circle. M lies on QS such that PM || SR. PTS=145o

9.1 Calculate the size of:
9.1.1
(2)
9.1.2
(2)
9.1.3
(1)
9.2 Why is PR tangent to the circle passing through P, M and Q? (1)
[6]