Write a paragraph proof of this theorem: In a plane, if two lines are perpendicular to the same line, then they are parallel to each other. Given: R ] S, T ] S Prove: R II T

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asked Nov 21, 2015 234k views

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MrC Aka Shaun Curtis · Answer 1 · 2015-11-26T17:41:47+0000

If you call the gradient of S m:

Gradient of R if perpendicular to S = -1/m

Gradient of T if perpendicular to S = -1/m

-1/m=-1/m, so the lines are parallel

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Write a paragraph proof of this theorem: In a plane, if two lines are perpendicular to the same line, then they are parallel to each other. Given: R ] S, T ] S Prove: R II T

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