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2 August, 17:36

A pond is created by digging a rectangular prism. The hole is 3 yards wide, 4 yards long, and 2 yards deep. The sides and bottom of the pond are lined with a protective plastic. How many square yards of the plastic are used?

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  1. 2 August, 18:55
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    Find the area of the 5 sides (not 6 because the top is open).

    The area is made up of a load of rectangles. 2 of each rectangle are present except the top and bottom.

    (4 x 2 x 2) + (3 x 2 x 2) + (3 x 4) = 40yd²
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