Question

what is the diameter of a circle with a circumference of 84.78 inches?use 3.14 for pi,show your work please

Answer 1

27 inches

Explanation:

the formula for the circumference is 2 × pi × r

so: 2 × pi × r = 84.78

so 84.78/2pi = r

r = 13.5

we want the diameter which is 2 x r

so the diameter is 27