1.

If l ll m and m ll n then prove that l lln??

Answer»

Step-by-step explanation:

Lines l and m are parallel to each other, hence they are MAKING an angle of 0

0

between them.

Similarly, lines m and n are parallel to each other, hence they are making an angle of 0

0

between them.

Therefore, angle between lines l and n is ALSO 0

0

, which PROVES that l∥n.

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