drc2149 drc2149

25-06-2021
Mathematics

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How to solve and answer to the question

How to solve and answer to the question class=

Respuesta :

aayu0302 aayu0302

25-06-2021

Answer:

7

Step-by-step explanation:

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

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

138 + 7x - 7 = 180

7x - 7 = 180 - 138

7x = 42 + 7

7x = 49

x = 49/7

x = 7

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