Question

In figure 2.20, if angle a = angle b and angle x = angle y then prove that line l parallel to line n​

Answer 1

Answer:

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Answer 2

Answer:

∠b= ∠a= (Corresponding angles)

So as corresponding angles are equal in parallel lines, line l║ line m

Now,

∠x= ∠y        (Interior alternate angles)

So as Interior alternate angles are equal in parallel lines, line n║ line m

line l║ line║ line n

∴ linel║ line n

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