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# Q.4 Find the value of x in each of the following figures if l $$\parallel$$m

(i) Let the angle opposite to 110° be y.
$$\therefore$$ y = 110° (Vertically opposite angles)
$$\angle$$x + $$\angle$$y = 180° (Sum of interior angle on the same side of transversal)
$$\angle$$x + 110° = 180° .
$$\therefore$$ $$\angle$$x = 180° – 110° = 70°
Thus x= 70°
(ii) $$\angle$$x = 110° (Pair of corresponding angles)