Across
- 3. two objects are similar if they have the same shape, or one has the same shape as the mirror image of the other.
- 6. ratio of the adjacent to the opposite side of a right-angled triangle. Looks like ‘cot’.
- 7. two triangles are similar if they have the same shape, or one has the same shape as the mirror image of the other.
- 10. the inverse function of tangent. Looks like O/A ^-1
- 12. the angle from the horizontal upward to an object. An observer's line of sight would be above the horizontal.
- 15. the side that is next to, or adjacent to an angle. Used in cosine and tangent.
- 16. one of the three most common trigonometric functions. Opposite/hypotenuse
- 17. a branch of mathematics. Studies the relationship between side lengths and angles of triangles.
- 18. a function obtained by expressing the dependent variable of one function as the independent variable of another; f and g are inverse functions if f(x)=y and g(y)=x. The inverse functions are called the arcsine, arccosine, and arctangent, respectively.
- 19. the side that is the longest on a triangle. Used in sine and cosine.
Down
- 1. a triangle with one right angle. The basis of trigonometry.
- 2. the inverse function of cosine. Looks like ‘O/H ^-1’.
- 4. the angle from the horizontal downward to an object
- 5. function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle
- 8. the inverse function of sine. Looks like A/H ^-1
- 9. either of two angles whose sum is 90°.
- 11. of or relating to or according to the principles of trigonometry. Sine, Cosine, and Tangent are functions in this topic.
- 13. the side that is across from a given angle. Used in trigonometry.
- 14. one of the three most common trigonometric functions. Adjacent/hypotenuse
- 17. one of the three most common trigonometric functions. Opposite/adjacent.