Identifying Pairs Of Lines And Angles Worksheet With Answers Page 6
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93.3 Prove Lines are Parallel
Obj.:
Use angle relationships to prove that lines are parallel.
Key Vocabulary
• Paragraph proof - A
proof
can also be
written
in paragraph form, called a
paragraph
proof.
• Converse - To write the converse of a conditional statement,
exchange
the
hypothesis
and conclusion.
• Two-column proof - A two-column proof has numbered
statements
and
corresponding
reasons
that show an argument in a
logical
order.
Corresponding Angles
Converse
If two lines are cut by a transversal so the corresponding
angles are congruent, then the lines are parallel.
j // k
Alternate Interior Angles
Converse
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