Question

Please solve with explanation​

Answer 1

<1=120 , <1= <bop = veryically opposite angle

therefore both are equal to 120⁰

now, <2=60⁰

<2+<co'p= 180⁰ by linear pair so <co'p = 120⁰

now,

both angles bop and co'p are equal to 120⁰ so they are equal

but they are alternate interior angles

so, if alternate interior angles are equal then line is parallel

Hence, its proved that m||n

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