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13 March, 23:43

Find the area of equilateral triangle (regular 3 gon) with 9 in perimeter

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  1. 14 March, 03:40
    0
    Area = 3.897

    Step-by-step explanation:

    Remark

    What you are subtly being told is the side of an equalateral triangle = P/n.

    n = the number of sides

    n = 3

    P = 9

    side = 9/3 = 3

    The area of an equalateral triangle given 1 side is

    Area = sqr (3) * s^2 / 4

    Area = 3.897
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