Question

A quarter has a diameter of approximately 24 millimeters. What is its circumference? 75.36 mm

150.72 mm
7.64 mm
37.68 mm

Answer 1

To find the circumference of a circle the equation is 2 times pi times the radius. The radius is half of the diameter, so its 12. So the answer would be 75.36mm

Answer 2

Circumference = 75.36 mm.

Explanation:

Given : A quarter has a diameter of approximately 24 millimeters.

To find : What is its circumference.

Solution : Diameter = 24 mm.

Radius =
`(Diameter)/(2)`.

Radius =
`(24)/(2)`.

Radius = 12 mm

Circumference = 2 * pi* radius .

Plugging values

Circumference = 2 * 3.14* 12 .

Circumference = 75.36

Therefore, Circumference = 75.36 mm.