drc2149 drc2149
  • 25-06-2021
  • Mathematics
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Answer to the question

Answer to the question class=

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aayu0302
aayu0302 aayu0302
  • 25-06-2021

Answer:

7

Step-by-step explanation:

Step-by-step explanation:  

AB//CD (Opposite sides of parallelogram are parallel)  

Angle A + Angle B = 180 (Sum of interior angles=180)  

179 + 3x - 20 = 180  

3x - 20 = 180 - 179

3x - 20 = 1

3x = 1 + 20

3x = 21

x = 21/3  

x = 7

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