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24 March, 18:09

A large city in the ancient world was square-shaped. measured in miles, its area numerically exceeded its perimeter by about 132. find its dimensions. (round to the nearest tenth.

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  1. 24 March, 20:11
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    Area = perimeter + 132.

    Let each side of the city be x miles long, then:-

    x^2 = 4x + 132

    x^2 - 4x - 132 = 0

    x = [ - (-4) + / - sqrt ((-4) ^2 - 4 * 1 * - 132) ] / 2

    x = 13.66, - 9.66 We ignore the negative

    So the city has dimension of 13.66 * 13.66

    13.7 * 13.7 to nearest 10th
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