in a quadrilateral abcd, â a = 72° and â c is the supplementary of â a. the other two angles are 2x–10 and x + 4. find the value of x and the measure of all the angles.
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10. An angle exists that is complementary to angle g on one side. On the other side, the angle is supplementary to angle h. The sum of the three angles is 200°. What is the measure of this common.
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