Question

Circumference of a circle is 56.52 feet. What is the circle's diameter?
Use 3.14 for Pi.

Answer 1

Answer: about 17.99 (round up to 18)

Explanation:

d=C/Pi

Pi=56.52

Pi≈17.99087ft

Formula= 2pir

Pi=3.14

R=radius

Answer 2

The diameter is 18ft

Explanation:

The formula for circumference of a circle is 2πr, or 2*pi*the radius. If the circumference is 56.52 and we are using 3.14 for pi, you could solve for r for 56.52=2*r*3.14. Divide by 2*3.14 on both sides to get r=9. The question is asking for the diameter, which is twice the radius, or 9*2=18.