trig unit 2

2. Angle – An angle that measures greater than 90° but less than 180°.
7. – Having the same ratio between corresponding sides.
9. Triangle – A triangle that contains one right angle.
12. – The longest side of a right triangle, opposite the right angle.
15. of Elevation – The angle formed when looking upward from a horizontal line to an object.
17. Angles – Two angles whose measures add up to 90°.
18. Side – The side of a right triangle across from a given angle.
19. – The common endpoint where two rays meet to form an angle.
20. – A part of a line that starts at one point and extends infinitely in one direction.

1. – A mnemonic used to remember the sine, cosine, and tangent ratios.
3. Triangles – Triangles that have the same shape but may be different sizes; corresponding angles are equal and side lengths are proportional.
4. Angle – An angle that measures exactly 90°.
5. Ratio – A ratio comparing the side lengths of a right triangle.
6. of Depression – The angle formed when looking downward from a horizontal line to an object.
8. Angle – An angle that measures less than 90°.
10. Side – The side next to a given angle, but not the hypotenuse.
11. – A figure formed by two rays that share a common endpoint (the vertex).
13. (sin) – A trigonometric ratio equal to opposite ÷ hypotenuse.
14. (cos) – A trigonometric ratio equal to adjacent ÷ hypotenuse.
16. (tan) – A trigonometric ratio equal to opposite ÷ adjacent.