Across
- 2. an angle between 90 and 180 degrees
- 8. four-sided polygon
- 10. no intersection
- 11. triangle
- 15. the length of the closed curve of a circle
Down
- 1. the property created by the space between objects
- 3. three sided figure
- 4. four equal sides
- 5. at an angle
- 6. cross paths
- 7. no sides
- 9. the space between two lines that intersect
- 12. angle less than 90 degrees but more than 0
- 13. determine the size of something
- 14. corresponding in character or kind