Please help me solve this

Question

A car wheel has a 16inches radius. Through what angle does the wheel turn when the car rolls forward 3ft

Answer 1

r=16 inches

d=32 inches

C=∏*d

C=3.14159*32

C=100.53088 inches

3 feet=36 inches

the car rolls 36/100.53088 of a complete revolution

36/100.53088=0.3580989 of a complete revolution

0.3580989*360=128.9156° is the angle