1.

from the adjacent figure value of x is A) 105° B) 60° C) 45° D) 30°

Answer»

Correct option is (C) 45°

\(75^\circ\) is an exterior angle of a triangle whose opposite interior angles are x and \(30^\circ.\)

\(\therefore\) \(x+30^\circ=75^\circ\)

\(\Rightarrow x=75^\circ-30^\circ=45^\circ\)

Correct option is  C) 45°



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