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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? She should have used 12 in the formula, not 24. She forgot to multiply the radius by 2 in the formula. She did not add the additional fence length to the pool’s radius. She should have used 4 ft in the formula.

User Xavier Sky
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2 Answers

6 votes

Answer:

B.

Explanation:

User Ddagsan
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7 votes

Answer:

she forgot to multiply the radius by 2 in the formula (B)

Explanation:

i got it right :)

User Papercowboy
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