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March 27, 2017

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find the area of an isosceles triangel with hypothenues 18

  • honors geometry - ,

    If it has a hypotenuse it must also be a right triangle.

    Since the other two sides are equal, their lengths must ne 18/sqrt2.

    The area is then (1/2)(18/sqrt2)^2
    = 9*18/2 = 81

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