Question

In the given figure, ∥ , find the value of x.
(a) 50o (b) 60o

(c) 75o

(d) None of these



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Answer 1

Answer:

The value of x is 30°.

d) is the correct option

Step-by-step explanation:

(3x - 40°) = (x + 20°)   (alternate interior angles )

3x - 40° = x + 20°

3x - x = 20° + 40°

2x = 60°

x = 60°/2

x = 30°