Chapter 3: Q23 (page 77)
Exercises 23-29 refer to the diagram in step 2 of exercise 22.

Name five lines that appear to be parallel to.
Short Answer
The five lines that appear to be parallel toarerole="math" localid="1637647581937" and.
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Chapter 3: Q23 (page 77)
Exercises 23-29 refer to the diagram in step 2 of exercise 22.

Name five lines that appear to be parallel to.
The five lines that appear to be parallel toarerole="math" localid="1637647581937" and.
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Find the values of and

Alan tried to prove Postulate 10 as shown below. However, he did not have valid proof. Explain why not.
If two parallel lines are cut by a transversal, then corresponding angles are congruent.
Given ; transversal cuts and
Prove:

Statement | Reason |
1. | Given |
2. | If two parallel lines are cut by transversal then alt. int. are |
3. | Vert. are |
4. | Transitive Property |
State the postulate or theorem that justifies each statement.

is supplementary to
Complete each statement with the word always, sometimes, or never.
Two lines in the plane of the floor are _?_skew.
Complete each statement with the word always, sometimes, or never.
Two planes parallel to the same line are parallel to each other
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