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17 August, 07:53

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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  1. 17 August, 09:54
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    42pi or 131.95 yards

    Step-by-step 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
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