Question

in figure given below decide whether l is parallel to m
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Answer 1

Answer:

yes this line are ll to each other

1 =120

1 =3=120

2+3 =180

60+120 =180

180 = 180

Answer 2

Answer:

Yes, line l ll line m.

Step-by-step explanation:

∠1 = ∠3 ----- (Vertically Opposite Angles)

Thus,

∠3 = 120°

∠2 & ∠3 are interior angles.

Therefore,

∠2 +∠3 = 180°

120° + 60° = 180°

180° = 180°

Therefore, L.H.S. = R.H.S.

Thus, line l ll line m. ------ (Hence proved)

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