Question

If l, m, n are lines such that I || m and m || n, then show that I ll n.​

Answer 1

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Answer 2

Answer:

Here your answers.

Given l || m, n perpendicular l To prove: n ⊥ m Since l || m and n intersects them at G and H respectively ∠1 = ∠2 [Corresponding angles] But, U = 90o [n ⊥ l] ∠2 = 90o Hence n perpendicular