Q. 33
In Fig. 5.27, a = A. 20°
B. 24°
C. 36°
D. 120°
Answer :
Angle 5b and 2a forms a linear pair
5b + 2a = 1800
⇒ 5b = 1800-800
⇒ 5b = 1000
⇒ b = 200
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