Joshua Dunn

1. Triangles are same size and same shape
5. Two angles that add up to 180 degrees
10. Between 0 and 90 degrees
11. The endpoint of a ray that is rotated to form the angle
12. Between 90 and 180 degrees
14. Angles with same initial and terminal side, but different measures of rotation
16. Counterclock-wise rotation
18. Exactly 180 degrees
19. Unit of measure for angles
20. Exactly 90 degrees

1. Two angles that add up to 90 degrees
2. Triangles are same shape, but not same size
3. Clock-wise rotation
4. 1/60 of a minute
5. Vertex is located at the origin and one ray is on the positive x-axis
6. When a ray is rotated around its endpoint to form an angle, the ray in its location after rotation
7. 1/60 of a degree
8. Opposite angles formed by intersecting lines
9. Formed by rotating a ray around its endpoint
13. An angle that has its terminal side along the x-axis or y-axis
15. One of the two rays with a common end point that form a angle
17. When a ray is rotated around its endpoint to form a angle, the ray in its starting position