Question

The base of a small fountain is shaped like a circle. Annie wants to put a border around the circular base. The radius of the circle is 42 inches. What is the circumference of the base of the fountain? Use π = 3.14.

Answer 1

263.76 inches

Explanation:

You want to know the circumference of a circle with radius 42 inches.

Circumference

The circumference of a circle is found using the formula ...

C = 2πr . . . . where r is the radius

For the given values the circumference is ...

C = 2·3.14·42 in = 263.76 in

The circumference of the base of the fountain is about 263.76 inches.

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Additional comment

That's very nearly 22 feet. If you used 22/7 for π, you would get 22 ft as the circumference.

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