Warm Up (Just give the fraction.) 3. Find the measure of ∠T: ________ 4. Solve for the length of AC. 32o 17

Def. Trigonometry is the study of the relationships between the angles and sides of a right triangle. Def. A comparison of the lengths of two sides of a right triangle is called a trigonometric ratio. The three most common ratios of trigonometry are sine, cosine, and tangent.

Write this on pg. 698 In a right triangle, the trig ratios can be found by remembering SOH CAH TOA

pg. 698

pg. 698 SOH – CAH - TOA

Put these on a separate piece of paper Solve for the variable in each problem: SOH – CAH - TOA SOH – CAH - TOA SOH – CAH - TOA

Find x or y. 1) 2) 3)

SOH – CAH - TOA pg. 700

SOH – CAH - TOA pg. 701

pg. 701

SOH – CAH - TOA pg. 702

SOH – CAH - TOA Do this on your separate sheet of paper Ex. Find x.