TRIGONOMETRY

123456789101112131415
Across
  1. 4. line above the horizontal level.
  2. 7. adjacent by hypotenuse.
  3. 11. a study of the relationships b/w the sides and angles of a triangle.
  4. 13. line below the horizontal level.
  5. 14. reciprocal of sine.
Down
  1. 1. longest side of a right triangle.
  2. 2. equation involving trigonometric ratios of angles.
  3. 3. tangent 45 degree.
  4. 5. cosecant thirty degree.
  5. 6. line drawn from the eye of an observer.
  6. 8. the one who found the 'sine'.
  7. 9. adjacent by opposite.
  8. 10. opposite side by hypotenuse.
  9. 11. surveying instrument which is based on the principles of trigonometry.
  10. 12. the measure of an unknown angle.
  11. 15. reciprocal of cotangent.