Question

The radius of the circle above is 39 mm. What is the circumference of the circle? Use 7 = 3.14.

Circumference = 2017
A. 244.92 mm
B. 9,551.88 mm
C. 122.46 mm
D. 4,775.9400000000 mm

Answer 1

244.92 or A

Explanation:

r=39, so we can then find the diameter.

39*2= 78 (the diameter)

c=(pi)(d)

c=3.14*78

c= 244.92