Chapter 3: Q29. (page 109)
Complete the table for convex polygons.
Number of sides | 3 | 4 | 5 | 6 | 7 | 8 | n |
Number of diagonals | 0 | 2 | ? | ? | ? | ? | ? |
Short Answer
The complete table is
Number of sides | 3 | 4 | 5 | 6 | 7 | 8 | n |
Number of diagonals | 0 | 2 | 4 | 6 | 8 | 10 |
Chapter 3: Q29. (page 109)
Complete the table for convex polygons.
Number of sides | 3 | 4 | 5 | 6 | 7 | 8 | n |
Number of diagonals | 0 | 2 | ? | ? | ? | ? | ? |
The complete table is
Number of sides | 3 | 4 | 5 | 6 | 7 | 8 | n |
Number of diagonals | 0 | 2 | 4 | 6 | 8 | 10 |
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Get started for freeExercises 23 – 29 refer to the diagram in Step 2 of Exercise 22
Suppose the top and bottom of the box lie in parallel lines. Explain how theorem 3.1 can be used to prove .
Complete each statement with the word always, sometimes, or never.
Two lines in the plane of the floor are _?_skew.
Classify each pair of angles as alternate interior angles, same-side interior angles, corresponding angles, or none of these.
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 |
Classify each pair of angles as alternate interior angles, same-side interior angles, corresponding angles, or none of these.
and
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