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You want to install a 1 yard wide sidewalk around a circular swimming pool. The diameter of the pool is 20 yards. What is the distance around the outside edge of the new sidewalk?
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You want to install a 1 yard wide sidewalk around a circular swimming pool. The diameter of the pool is 20 yards. What is the distance around the outside edge of the new sidewalk?

User Nerdfest
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3.4k points

1 Answer

2 votes

Answer:

42pi or 131.95 yards

Explanation:

circumfrence of a circle is 2*pi*r

since you added a side wall 1 yard wide you increase the radius of the circle by one yard

so 2*pi*21= 42pi or 131.95 yards

User Juankysmith
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