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  1. December 16th 2008, 02:06 PM #1
    dgenerationx2
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    Math Questions 1

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  2. December 17th 2008, 10:26 AM #2
    masters
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    Quote Originally Posted by dgenerationx2 View Post
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    Hello again,

    I suppose we are to assume that quadrilateral ABCD is a parallelogram, else we couldn't do anything.

    Angles B and C are supplementary because they are consecutive interior angles between 2 parallel lines and transversal BC.

    8x-25+7x+55=180

    15x+30=180

    15x=150

    x=10

    m \angle B=8(10)-25=55

    m\angle C=180-55=125

    m\angle A=m\angle C=125

    m\angle D=m\angle B=55
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