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5 July, 17:54

The perimeter of a given is an integer. the length of side one is 4 times the length of side 2. side three is 33. what is the largest and smallest possible perimeter

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  1. 5 July, 21:21
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    I assume this is a triangle.

    the sum of two sides of a triangle has to be larger than the third side, and the difference has to be smaller than the third side

    the two unknown sides are x and 4x

    x+4x>33 = > x>6.6

    4x-x x<11

    6.6
    because the perimeter is an integer, the smallest x is 7 and the largest is 10

    therefore the largest perimeter is 10+40+33=83

    the smallest perimeter is 7+28+33=68
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