in quadrilateral abcd, angle b= 87, angle c= 100, and angle d= 106. find the measure of angle a. a. 67° b. 74° c. 80° d. 87°

asked Apr 1, 2017 74.1k views

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7 votes

Answer: its A

Explanation:

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Sum of all the angles of a quadrilateral is 360

87+100+106 +x =360

x = 360-293 = 67

so A 67 is the answer.

Mark Roddy answered Apr 6, 2017

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