Question

Write a paragraph proof of Theorem 3-8: 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||t

Answer 1

\(r\perp s \) hence \(\angle 1=90^0\)
\(t\perp s\) hence \(\angle 2 =90\)
\(Hence:~~m\angle 1 = m\angle 2\)
But they are alternating angles hence r //t

Answer 2

Okay

Answer 3

So is 90 degrees the answer ? Im kinda confused