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


Answer :

(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)

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