Across
- 2. angle measuring less than 90°
- 4. A pair of adjacent angles whose non-common sides form a straight line.
- 6. angles that share a common side and vertex, next to each other.
- 7. angle measuring exactly 180°.
- 8. angle measuring exactly 90°.
- 9. angles that add up to 90°.
Down
- 1. angles opposite each other when two lines intersect.
- 3. angles that add up to 180°
- 5. angle measuring more than 90° but less than 180°.