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28 December, 10:12

A rectangular park had a perimeter of 18 miles. It is 7 miles wide. What is the area of the park?

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  1. 28 December, 10:37
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    Perimeter = 18 miles

    Perimeter = 2a + 2b

    2a + 2b = 18

    a = ?

    b = 7

    18 = 2a + 2*7

    18 = 2a + 14

    2a = 18 - 14

    2a = 4

    a = 2

    Area = a * b

    Area = 2 * 7 = 14 miles2
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