Question

please give me a answer step by step ​

Answer 1

Answer:

x is 140°

Step-by-step explanation:

as the figure is quadrilateral

so

30 + 50 +x + x = 360° (angle sum property)

80+ 2x = 360

2x= 360- 80 = 280

2x=280

the value of x is 280/2 which is 140°

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Answer 2

Step-by-step explanation:

30+x+50+x=360

80+2x=360

2x=360-80

2x=280

x= 280/2

x=140°