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17 November, 08:25

The sum of the interior angle measures of a quadrilateral is 360 degrees. Angle Q = 2b degrees is 2x the measure of angle p = b degrees angle r is (3b - 19) degrees and angle s is (3b + 10) degrees. Find te value of b.

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  1. 17 November, 11:07
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    b = 61

    Step-by-step explanation: In quadrilateral PQRS,

    => angle Q + angle P + angle R + angle S = 360°

    => 2b + b + (3b-19) + (3b+10) = 360°

    => 9b - 9 = 360°

    => b = 369/9

    => b = 61
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