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Un article trouvé pour ce sujet.
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A circular border around a pool |
2009-09-08 |
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Calvin pose la question :
A pool in the shape of a circle measures 10 feet across. One cubic yard of concrete is to be used to create a circular border of uniform width around the pool. If the border is to have a depth of 3 inches, how wide will the border be? ( 1 cubic yard=27 cubic feet )
Stephen La Rocque lui répond. |
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