1. Date: Topic: Trigonometric Ratios (9.5)

2. Sides and Angles x The hypotenuse is always the longest side of the right triangle and is across from the right (90°) angle. The adjacent side is the side that forms the angle (x) with the hypotenuse. The opposite side is the side across from the angle (x). hypotenuse adjacent opposite xhypotenuse adjacent opposite We identify the different sides of a right triangle based on the angle we are given.

3. Hyp Opp Adj SohCahToa

4. Find the sine, cosine, and tangent of angle y. 6 8 10 y hypotenuse opposite adjacent SohCahToa

5. 5 12 Find the sine of x and y. x y hypotenuse opposite adjacent c 13 opposite adjacent SohCahToa

6. Find the value of each of the three trig functions of for angles A and B. c 3 4 A B C SohCahToa

7. If sin y°=, then find cos y° and tan y°. y hypotenuse opposite adjacent 4 5 b3 SohCahToa