Across
- 2. the set of all points
- 4. a figure formed by two rays that have the same endpoint
- 6. the figure formed by three segments joining three noncolinear points
- 7. a quadrilateral with four right angles and four congruent sides
- 10. a segment whose endpoints lie on a circle
- 12. a 5-sided polygon
- 14. an angle with measure 90
- 15. an 8-sided polygon
- 17. a chord that contains the center of a circle
- 18. the set of points in a plane that are a given distance from a point
- 19. a reasoning in which a the conclusion is based on past observations
- 20. a 10-sided polygon
Down
- 1. a triangle with no sides congruent
- 3. a plane figure formed by coplanar segments
- 5. the point that divides the segment into two congruent segments
- 8. a quadrilateral with four right angles
- 9. an angle with a measure between 0 and 90
- 11. a segment joining two non-consecutive vertices of a polygon
- 13. a statement that can be prove
- 16. proving statements by reasoning from accepted postulates