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March 24, 2017

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If the size of a rectangle's area is twice as large as the size of it's perimeter, and the length of one of its sides is 4.5, what is the length of the other side?

  • Geometry - ,

    one side --- 4.5
    other side ---- x
    area = 4.5x

    perimeter = 2x + 9

    translate " size of a rectangle's area is twice as large as the size of it's perimeter " into

    4.5x = 2(2x+9)
    4.5x = 4x + 18
    .5x = 18
    x = 36

    the other side is 36


    check:
    area = 4.5(36) = 162
    perimeter = 2(4.5+36) = 81

    is 162 twice 81 ??? Sure is !

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