1.

g In Figure 10.46, if m ll n show that I |I n.60°609Fistre 10.46

Answer»

Given : m||n

To prove : l || n

So, we have alternate angles are equal to 60°. So, using theorem that if twolinesare cut by a transversal and thealternateinteriorangles are congruent,thenthelines are parallel.

Therefore, l || n.

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