Question

answer this fast with method
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Answer 1

Answer:

130 + 50 = 180°

It is a linear pair

so line l is parallel to m

Answer 2

Answer:

as 130 +x = 180 ( angle in linear pair )

180 - 130= x

x = 50

on line m y= 50 ( given)

x=y ( alternate angle )

and there is property that if one alternate angle is congruent then the lines are parallel