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8. Lines and Angles
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Q18 of 115 Page 8

In Fig. 8.130, if l1||l2, what is the value of x?

Given that,

l1‖ l2


Let transversal P and Q cuts them


∠1 = 37o


∠4 = 58o


∠5 = xo


∠1 = ∠2 = 37o (Corresponding angles) (i)


∠2 = ∠3 (Vertically opposite angle)


∠3 = 37o


∠3 + ∠4 + ∠5 = 180o (Linear pair)


37o + 58o + x = 180o


x = 85o

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Questions · 115
8. Lines and Angles
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