Question

what is the value of x,if 30°,60°,120°,x are interior angle of a quadrilateral.
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Answer 1

Answer:

140

please give me thanks for my answer

Answer 2

Answer:

the sum of interior angle of an quadrilateral is 360

so

30+60+120+x=360

210+x=360

x=360-210

x=150

there fore fourth angle is 150