Across
- 3. Four congruent sides and congruent right angles
- 4. %
- 7. 180 degree line through the center of a circle
- 8. (0,0)
- 9. Two lines in the same plane that do not intersect
Down
- 1. A 10-sided polygon
- 2. A whole number and its opposites
- 5. A triangle with congruent angles
- 6. A 5-sided polygon
- 9. 3.14159265359...