Two Perpendiculars Theorem Proof

Two Perpendicular Theorem Proof: If two coplanar lines a and b are each perpendicular to the same line, then they are parallel to each other.

Given: Given picture a c, b c

Statements/Conclusion Justification

1) a c, b c 1) Given

2) 1 and 2 are 90 degree angles. 2) Definition of perpendicular lines

3) m1 = m2 3) Transitive Property

4) a b 4) Corresponding Angles Postulate

Statements/Conclusion	Justification
1) a c, b c	1) Given
2) 1 and 2 are 90 degree angles.	2) Definition of perpendicular lines
3) m1 = m2	3) Transitive Property
4) `a` `b`	4) Corresponding Angles Postulate

- Jaime III
"Research is what I'm doing when I don't know what I'm doing." - Werner Von Braun

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