Question

(i)In the given figure, decide whether l is parallel to m​

Answer 1

Answer:

Step-by-step explanation:

let us assume l || m

[please refer the image]

∠LAB = 126 , ∠ABM = 44

so, ∠ABC = 126 (alternate interior angles)

∠ABC + ∠ABM = 180 (linear pair)

126 + 44 = 170

170 ≠ 180

∴ our assumption is wrong, l is not parallel to m

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