Question

select the letter of the best answer choice. Use 3.14 or 22/7 for π
what is the radius of a circle with a circumference on 141.3 ft? Round your answer to the nearest foot.
A) 4.5 ft
B) 2.25 ft
C) 45 ft
D) 22.5 ft

Answer 1

C = 2πr
141.3 = 2(3.14)r
141.3 = 6.28r
22.5 = r