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6 September, 11:45

After the dimensions of an equilateral triangle are increased by a scale factor of 2.5, the perimeter is 45 units. What were the side lengths of the original triangle?

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  1. 6 September, 14:28
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    Original side of triangle = 6 units

    Step-by-step explanation:

    Given:

    Perimeter = 45 units

    Scale factor = 2.5 (Increase)

    Find:

    Original side of triangle = ?

    Computation:

    Original Perimeter = Perimeter / Scale factor

    Original Perimeter = 45 units / 2.5

    Original Perimeter = 18 units

    Perimeter of an equilateral triangle = 3 (Side)

    18 units = 3 (Side)

    Side = 6 units

    Original side of triangle = 6 units
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