Which equation listed below, when solved, shows how to find the circumference of a circle if the diameter is 6 inches? Use 3.14 for pi

Mathematics · High School · Sun Jan 24 2021

Answered on

Given:

Diameter = 6 inches

Determine the circumference of the circle.

Formula for the circumference of the circle:

C=2πr

Solution:

Solve first for the radius in terms of d.

d = 2r

r = d/2

r = 6/2

r = 3 inches

Substitute the value of 3 to the formula for the circumference of the circle.

C=2πr

C=2π(3 inches)

C=6π inches

C = 18.85 inches