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

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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