Re: In the figure, AB is parallel to CD. What is the value of x
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15 Apr 2020, 03:52
consider triangle CDE
x + y + angle(CED) = 180 --> 1
consider the line AB
angle(AEC) + angle(CED) + angle(BED) = 180
x + y + angle(CED) = 180 --> 2
1 and 2 are same equation.
So we have 1 equation with 2 variables, cannot find the value of x.
Hence, E is the right answer.