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Practice with Proofs Involving
Parallel & Perpendicular Lines
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Practice Page
Directions: Prepare a formal proof for each problem. Only one possible answer will be shown for each question.

1.

Given: m || n and a || b

Prove: 3 congruent ∠13




pf1

 

 

2.
pf2

 

 

3.
Prove: If a transversal is perpendicular to one of two parallel lines, it is perpendicular to the other line.


 

 

4.

PPp4given

 

PPp4

 

 

5.

ppp5given

 

PPp5

 

 

6.

PPp6given


ppp6

 


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