Across
- 2. a number that represents the result of counting
- 5. an angle measuring between 0 degrees and 90 degrees
- 9. triangles that are both the same size and shape
- 11. two angles with a sum of 180 degrees
- 12. each of the pairs of opposite angles made by two interesting lines
- 13. sine and cosine, tangent and cotangent, and secant and cosecant
- 16. one of the two line segments with a common endpoint
- 17. a digit obtained by actual measurement
- 18. the endpoint of the ray that is rotated to form the angle
- 20. congruent to the angle of elevation
- 23. an angle that has its terminal side along the x-axis or the y-axis coterminal_angles angles in standard position that have a common terminal side
- 25. an angle measuring more than 90 degrees but less than 180 degrees straight_angle an angle measuring exactly 180 degrees
- 27. the positive acute angle made by the terminal side of angle θ and the x-axis
Down
- 1. side next to the reference angle in a right triangle
- 3. 1/60th of a degree
- 4. formed by rotating a ray around its endpoint
- 6. a unit of measure for angles
- 7. an angle that is formed by counterclockwise rotation
- 8. when the ray is rotated around its endpoint to form an angle, this is the side in the starting position.
- 9. two angles with a sum of 90 degrees
- 10. the side across from the reference angle in a right triangle
- 14. angle formed by the line of sight and the horizontal plane for an object above the horizontal
- 15. when the vertex is located at the origin and one ray is on the positive x-axis.
- 19. when a ray is rotated around its endpoint to form an angle, this is the side in the position after the rotation
- 21. triangles that are the same shape, but not necessarily the same size
- 22. an angle that is formed by clockwise rotation
- 24. an angle measuring exactly 90 degrees
- 26. 1/60th of a minute