Question

A circular swimming pool has a radius of 20 feet. A fence is going to be built so that there is a 4-foot space around the entire pool. What is the length of the fence? Sunitha solved the problem as shown.

A circle with radius 20 feet. A larger circle is 4 feet larger than the smaller circle. Radius = 24 feet. Circumference = 24 pi.

What was her error?

Answer 1

B. She forgot to multiply the radius by 2 in the formula

Step-by-step explanation:

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Answer 2

Answer: she forgot to multiply the radius by 2 in the formula .

Step-by-step explanation: