PreCalculus: Angles and More

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Across
  1. 4. Measure of an angle based on a circle having 2π radians.
  2. 8. An angle which is less than 90°.
  3. 10. Ratio between the circumference and the diameter of a circle.
  4. 11. The ray where the measure of an angle starts.
  5. 13. Rotation from one ray to another ray, both starting at the same vertex.
  6. 14. A circle with a radius of 1 unit.
  7. 15. Where the initial side of any angle is set on the x-axis.
  8. 17. Two angles that add up to 90°.
  9. 18. Four quarters of the coordinate plane.
  10. 19. An angle which is greater than 90° but less than 180°.
  11. 21. It is the positive acute angle that can represent an angle of any measure.
  12. 24. Horizontal reference line of the coordinate plane.
Down
  1. 1. Direction in which the hands of a clock rotate.
  2. 2. Angles who share the same initial side and terminal sides but different measures.
  3. 3. The ray where the measure of an angle ends.
  4. 5. Two angles that add up to 180°.
  5. 6. Parts of a degree, where one degree is 60 minutes.
  6. 7. Direction opposite to that in which the hands of a clock rotate.
  7. 9. A straight angle is 180°.
  8. 12. Angle at the center of a circle.
  9. 16. Parts of a minute, where one minute is 60 seconds.
  10. 20. Measure of an angle based on a circle having 360 degrees.
  11. 22. Angle An angle of 90°.
  12. 23. Vertical reference line of the coordinate plane.