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4 March, 07:09

Two angles of a quadrilateral measure 107° and 115°. The other two angles are in a ratio of 5:18. What are the measures of those two angles?

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  1. 4 March, 07:28
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    Interior angle of quadrilateral is 360

    Sum of the two known angles 222

    The sum of the other two is 360-222=138

    Ratio 5:18

    A=5/23*138=30

    B=18/23*138=108
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