Question

A circle has a diameter of 7.2 inches.

What is the circumference of the circle, rounded to the nearest tenth of an inch?
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Answer 1

22.6 inches

Explanation:

The circumference of a circle is given by

C = pi *d

The diameter is 7.2 inches

Approximating pi by 3.14

C = 3.14 * 7.2

C = 22.608

Rounding to the nearest tenth

C = 22.6