4. In the given figure, find the value if x:
a) 40°
b)50°
c)60°
d)80°
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1
Answer:
50°....
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Answer:
(x+3°)+(x+20°)+(x+7°)=180°
3x+30°=180°
3x=180°-30°
3x=150°
x=150°/3
x=50°
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