Across
- 2. and part of a line with one end point.
- 4. a mathematical relationship or rule expressed in symbols.
- 8. angle less than 90 degrees.
- 10. two angles whose sum is 180 degrees.
- 11. formed when two rays originate from the same point.
- 12. a statement that the values of two mathematical expressions are equal (indicated by the sign =).
- 13. an angle greater than 180 degrees but less than 360 degrees.
- 15. angle equal to 180 degrees.
Down
- 1. sum of two adjacent angles is 180 degrees.
- 3. two angles whose sum is 90 degrees.
- 5. a part of a line with two end points.
- 6. common vertex, common arm, two non-common arms on different sides of the common arm.
- 7. angle greater than 90 degrees but less than 180 degrees.
- 9. end point of the two rays making an angle.
- 14. angle which is exactly equal to 90 degrees.