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9 July, 03:47

An equilateral triangle has perimeter 57cm, what is the length of one of the sides?

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  1. 9 July, 04:08
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    19 cm

    Step-by-step explanation:

    An equilateral triangle has all 3 sides the same length

    P = 3s where s is the side length

    57 = 3s

    Divide each side by 3

    57/3 = 3s/3

    19 = s
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