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Opener. The Trigonometric Functions we will be looking at. SINE. COSINE. TANGENT. The Trigonometric Functions. SIN E. COS INE. TAN GENT. SIN E. Pronounced “sign”. COS INE. Pronounced “co-sign”. TAN GENT. Pronounced “tan-gent”. Greek Letter q. Pronounced “theta”.

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## Opener

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**The Trigonometric Functions we will be looking at**SINE COSINE TANGENT**The Trigonometric Functions**SINE COSINE TANGENT**SINE**Pronounced “sign”**COSINE**Pronounced “co-sign”**TANGENT**Pronounced “tan-gent”**Greek Letter q**Pronounced “theta” Represents an unknown angle**hypotenuse**hypotenuse opposite opposite adjacent adjacent**Find the sine, the cosine, and the tangent of theta.**Give a fraction. 37 35 12 Shrink yourself down and stand where the angle is. Now, figure out your ratios.**Find the sine, the cosine, and the tangent of theta**24.5 8.2 23.1 Shrink yourself down and stand where the angle is. Now, figure out your ratios.**Classwork**SPW 16.4**Draw ABC where BAC = 90 and sin B = 3/5**4 What is the length of AB? What is tan C? 4/3**sin**Draw stick-man standing where the angle is and mark each given side. Then tell which trig ratio you have. H O**Homework**Worksheet

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