Chapter 3: Q1 (page 87)
In each exercise some information is given. Use this information to name the segments that must be parallel. If there are no such segments, write none.

Short Answer
The obtained segments areand.
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Chapter 3: Q1 (page 87)
In each exercise some information is given. Use this information to name the segments that must be parallel. If there are no such segments, write none.

The obtained segments areand.
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Given:
Prove:

Write the reasons to complete the proof: If two lines are cut by a transversal and alternate exterior angles are congruent, then the lines are parallel.

Given: Transversal t cuts lines l and n;
Prove:
Proof:
Statements | Reasons |
1. | 1. |
2. | 2. |
3. | 3. |
4. | 4. |
Complete.

A regular polygon has 18 sides. Find the measure of each interior angle.
Plane X is parallel to plane Y. If plane Z intersects X in line l and Y in line n, then l is parallel to n.
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