Across
- 5. The space between two intersecting lines or surfaces at or close to the point where they meet
- 6. Two angles whose sum is 90 degrees
- 10. A straight line at an angle formed when two lines intersect
- 13. Three sides of one triangle are congruent to three sides of another triangle
- 15. A line which equals 180 degrees
- 16. A leg of one right triangle is congruent to the other leg of another triangle
- 17. Having a common side and vertex
- 18. Two sides and included angle of one triangle is congruent to two sides and the included angle of another triangle
Down
- 1. Angles that occupy the same relative position at each intersection where a straight line crosses two others
- 2. A pair of adjacent angles formed when two lines intersect
- 3. Two angles whose sum is 180 degrees
- 4. A line segment that divides the angle into equal parts
- 7. Any angle greater than 90 degrees
- 8. Two angles and the included side of one triangle are congruent to two angles
- 9. two angles and non-included side of one triangle are congruent to two angles and non-included side of another triangle
- 11. A pair of opposite angles made by two intersecting lines
- 12. An angle of 90 degrees
- 14. Present or experienced to a severe or intense degree no larger than 90 degrees
