Across
- 4. a reversed conditional; if a conditional is p->q
- 6. an eight-sided polygon
- 7. side by side and having the same distance continuously between them:
- 9. description of two lines that form a right angle
- 10. a tool used to measure angles
- 12. the amount of space taken up in a plane by a figure
- 14. a four-sided polygon
- 15. a five-sided polygon
- 16. a seven sided polygon
- 20. a six-sided polygon
- 21. the measure of the tilt of a line; rise over run
Down
- 1. the union of 2 rays that have the same endpoint; measured in degrees or radians (trig.);
- 2. a statement assumed to be true without proof
- 3. a ten-sided polygon
- 5. within the same plane
- 8. made by two points
- 9. a quadrilateral with both pairs of opposite sides parallel
- 11. in the same line
- 13. a drawing tool used to draw circles at different radii
- 17. a 2-D figure that can be folded on its segments or curved on its boundaries to form a 3-D figure; see article here
- 18. important mathematical statements which can be proven by postulates, definitions, and/or previously proved theorems
- 19. the amount of space a 3-D object can hold