Question

please help quick! will give medal!
What is the approximate circumference of circle C if PQ = 20 mm? (Use 3.14 for pi.)

31.4 mm

51.2 mm

62.8 mm

102.4 mm

Answer 1

do you know the formula for the circumference of a circle

Answer 2

C=2(pi)r is to find radius

Answer 3

C=(pi)d is to find diameter

Answer 4

ok that is correct so we see that the diameter is given so which equation should you plug the diameter in to find the circumference

Answer 5

C=(pi)d

Answer 6

C=(pi)20

Answer 7

C = 3.14 x 20 ??

Answer 8

oh ok, thanks for breaking it down for me its 62.8.