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The perimerter of a rectangular concrete slab is 68 feet and its are is 280 square feet What is the length of the longer side of the slab?
Wiki User
∙ 13y ago
L + W = P/2 = 34, so L = 34 - W;
L x W = 280 or (34 - W) x W = 280 ie 34W - W2 = 280 which is W2 - 34W + 280 = 0
This factorises as (W - 14)(W - 20) so the sides are 14 and 20 feet, the latter being the longer.
Wiki User
∙ 13y ago
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