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31 March, 22:31

The length of each side of an equilateral triangle is decreased by 3 inches, so the perimeter is now 21 inches. what is the original length of each side of the equilateral triangle

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  1. 1 April, 02:04
    0
    An equilateral triangle has equal sides

    so if you divide the perimeter by 3 you would get the length for all of the sides

    21/3 = 7

    since it said it was decreased by 3 inches you add 3 inches back

    7 + 3 = 10

    so the original length of one side of the triangle is 10 inches
  2. 1 April, 02:26
    0
    The Perimeter then would be 30 Inches!

    :V
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