Question 110(i)

In the given figure, examine whether the following pairs of lines are parallel or not.
EF and GH

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Solution

From the given figure $x = 65^{\circ} [v e r t i c a l l y o p p o s i t e a n g l e s] a n d y = 180^{\circ} - 70^{\circ} [l i n e a r p a i r]$
Now, $x + y = 65^{\circ} + 110^{\circ} = 175^{\circ} \neq 180^{\circ} H e n c e E F a n d G H a r e n o t p a r a l l e l .$

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In the given figure, Find out which pair of lines are parallel.

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In the given figure state which pair of lines are parallel. Give reason.

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