Math Crossword

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Across
  1. 4. angle an angle greater than 90° but less than 180°
  2. 6. tan -1
  3. 11. cos-1
  4. 12. the side next to the angle we know
  5. 14. the study of the relationships between sides and angles in triangles.
  6. 17. angle an angle grater than 180° but less than 360°
  7. 18. sine function
Down
  1. 1. tool that is used to measure the angle of elevation.
  2. 2. the longest side of a right-angled triangle, opposite the right angle.
  3. 3. cosine function
  4. 5. having all sides of equal length
  5. 7. angle a 90° angles
  6. 8. sin-1
  7. 9. angle an angle less than 90° but greater than 0°
  8. 10. optical instrument for measuring angles between designated visible points in the horizontal and vertical planes.
  9. 13. theorem In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides.
  10. 15. the side opposite the angel we know
  11. 16. tangent function