Question

Find the circumference of a circle that has a radius of 14 feet and use 3.14 for pi. Round to the nearest tenth.

Answer 1

87.9 feet

Explanation:

circumference = 2(π)(r)

c = 2(3.14)(14)

c = 87.92

round to nearest tenth: c = 87.9

Answer 2

Formula for the circumference of a circle:

C = 2πr (C = circumference π(pi) = 3.14.... r = radius)

You know:

r = 14 ft

π = 3.14 So substitute/plug it into the equation

C = 2πr

C = 2(3.14)(14)

C = 87.92 Round to the nearest tenth

C = 87.9 ft