1.

In the given figure, if lines EF || GH, then find the value of x.

Answer»

EF || GH

115° + (x + 32°)= 180°

(The sum of the interior angles on the same side of a transversal is supplementary)

⇒ x + 147° = 180°

⇒ x = 180° – 147° 

= 33°



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