Question

A bicycle tire has a radius that measures 12 inches. Which of the following represents the circumference of the tire.

(A) 6pi inches. (B) 12pi inches (C) 24pi inches (D) 36pi inches

Answer 1

(c) 24 pi inches.

Explanation:

The Circumference is two times the size of the radius.

12*2=24

Answer 2

C) 24pi inches

Explanation:

In geometry, the circumference of a circle is the distance around it. That is, the circumference would be the length of the circle if it were opened up and straightened out to a line segment. Since a circle is the edge of a disk, circumference is a special case of perimeter.

Formula:

C = 2(pi)r

So: C = 2(pi)12 OR 24pi inches.

This means your answer is C.