Question

find value of x in the figure

Answer 1

It's 90degree because of the property..

Answer 2

it is a 4-sided polygon⇒ Sum of all interior angles = 360°

∠ADC (reflex) = 360 - 35 - 50 - 45 = 230°

.

Angle at a point = 360°

x = 360 - 230 = 130°

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Answer: x = 130°