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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°
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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°

User Michel De Ruiter
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7 votes

Answer: its A

Explanation:

User Tornike Kurdadze
by
8.0k points
0 votes
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.
User Mark Roddy
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