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11 January, 00:52

Two sides of a triangle have the same length. the third side measures 7 m less than twice the common length. the perimeter of the triangle is 13 m. what are the lengths of the three sides?

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  1. 11 January, 01:45
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    Hello

    2 côtés = 2 x

    3 ème côté = 4 x - 7

    2 x + 4 x - 7 = 13

    6 x = 13 + 7

    6 x = 20

    x = 20/6 = 10/3 m
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