zoeb8arbarbug
zoeb8arbarbug zoeb8arbarbug
  • 29-06-2016
  • Mathematics
contestada

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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Аноним Аноним
  • 29-06-2016
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.
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serg60 serg60
  • 31-05-2019

Answer: its A

Step-by-step explanation:

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