Hope it helps
Answer:
angle a+b+c = 180°
90°+60°+c =180°
c = 30°
then one line is equal to 180°
so, 30°+x =180°
x = 150°
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Answers & Comments
Hope it helps
Answer:
angle a+b+c = 180°
90°+60°+c =180°
c = 30°
then one line is equal to 180°
so, 30°+x =180°
x = 150°