Trigonometry

3. the length of a leg of the triangle is the geometric mean of the lengths of the hypotenuse and the segment of the hypotenuse adjacent to the leg.
4. if the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other.
6. formed by an observer’s line of sight and a horizontal line.
9. the ratio of the leg adjacent to the angle to the hypotenuse.
11. if c^2=a^2+b^2
12. used to find the missing side of a right triangle.
16. x^2=ab and x=square root of ab

1. the length of the altitude is the geometric mean of the lengths of the two segments.
2. if c^2<a^2+b^2
5. can be used to find side lengths and angle measurements for any triangle.
7. shows the proportional relationship between angles and their opposite sides.
8. the ratio of the leg opposite the angle to the leg adjacent to the angle.
10. the study of triangle measurement.
13. formed by an observer’s line of sight and a horizontal line.
14. if c^2>a^2+b^2
15. the ratio of the leg opposite the angle to the hypotenuse.