Answer:
3π or 9.42
9π or 28.27
Step-by-step explanation:
First problem: C = πd
d = 18
measure of arc PQ = 60*π*18/360 = 3π or 9.42
Prob 2: d = 24
measure of are PQ = 135*π*24/360 = 9π or 28.27