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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°
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Apr 1, 2017
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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°
Mathematics
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Michel De Ruiter
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Answer: its A
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Tornike Kurdadze
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Apr 3, 2017
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Tornike Kurdadze
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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
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Apr 6, 2017
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