Across
- 2. two rays of an angle
- 3. common endpoint of two rays
- 4. 1/60th of a minute
- 7. Angles that have the same initial and terminal side, but different amounts of rotation
- 9. Triangles that have both the exact same size and shape
- 12. Angle measuring 90 degrees
- 13. Two angles that add up to 90 degrees
- 14. Angles in standard position whose terminal sides lie on the x or y axis
- 17. The ray where measurement of an angle stops
- 18. Angle measuring between 90 and 180 degrees
- 19. consists of two rays in a plane with a common endpoint, or two line segments with a common endpoint
- 20. Angles opposite one another at the intersection of two lines
Down
- 1. Angle measuring 180 degrees
- 2. When an angle's vertex is on the origin and the initial side is on the positive x-axis
- 5. Triangles of exactly the same shape but not necessarily the same size
- 6. The ray where the measurement of an angle starts
- 8. A counterclockwise rotation of an angle
- 10. Angle measuring between 0 and 90 degrees
- 11. Two angles that add up to 180 degrees
- 15. Most common unit for measuring angles
- 16. A clockwise rotation of an angle