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    marissa12's Avatar
    marissa12 Posts: 2, Reputation: 1
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    #1

    Feb 24, 2009, 08:24 PM
    Perimeter of an isoceles triangle
    calculate the perimater of an isosceles triangle with a height of 12 and a width of 32..(:
    ROLCAM's Avatar
    ROLCAM Posts: 1,420, Reputation: 23
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    #2

    Feb 24, 2009, 08:51 PM

    calculate the perimeter of an isosceles triangle with a height of 12 and a width of 32.. (:

    Pythagoras says :- 3 is to 4 is to 5.

    so 12 is to 16 is to 20.
    Therefore Perimeter is 20+20+32 = 72
    bones252100's Avatar
    bones252100 Posts: 253, Reputation: 29
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    #3

    Feb 24, 2009, 08:53 PM
    Make the 32 the base of the triangle. The midpoint of this should be 16. Now you have 2 right triangles each with a base leg of 16 & a height of 12. Use the Pythagorean theorem of length(squared) times height(squared) = hypotenuse(squared) to find the length of the equal legs. Add the length of the legs to base for the final answer.
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