Chapter 3: Q1 (page 89)
Two lines that do not intersect are parallel.
Short Answer
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Chapter 3: Q1 (page 89)
Two lines that do not intersect are parallel.
The blank should be filled with sometimes.
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In pentagon , and . and are each three times as large as .
If what are the measures of the other numbered angels?

If , name all angels that must be congruent to .

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 |
Draw each figure described.
Lines d and e are skew, lines e and f are skew, and .
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