Chapter 3: Q41 (page 77)
Draw each figure described.
Lines d and e are skew, lines e and f are skew, and .
Short Answer
The sketch of the figure described is:

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Chapter 3: Q41 (page 77)
Draw each figure described.
Lines d and e are skew, lines e and f are skew, and .
The sketch of the figure described is:

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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 a pentagon with one exterior angle at each vertex. Cut out the exterior angles and arrange them so that they all have a common vertex, as shown at the far right. What is the sum of the measures of the exterior angles? Repeat the experiment with a hexagon. Do your results support Theorem 3-14?

Each interior angle of a regular polygon has measure 150. How many sides does the polygon have?
Given: The measure of each interior angle of a regular n-gon is x times that of an exterior angle.
State which segments (if any) are parallel. State the postulate or theorem that justifies your answer.

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