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1 September, 02:07

Find the area of an equilateral triangle with an apothem of 7

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  1. 1 September, 02:12
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    Hello,

    Let's x the side of the triangle:

    x²-x²/4=7²

    ==>3/4x²=49

    ==>x=14/√3

    Area = 14/√3 * 7/2 = 49√3 / 3≈28,29016 ...
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