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Published byJocelyn Padilla Modified over 2 years ago

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SOH-CAH-TOA

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Warm – up: Find the missing measures. Write all answers in radical form. 45° x w 7 60° 30° 10 y z

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The Trigonometric Functions we will be looking at SINE COSINE TANGENT

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The Trigonometric Functions SINE COSINE TANGENT

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SINE Prounounced sign

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Prounounced co-sign COSINE

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Prounounced tan-gent TANGENT

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Prounounced theta Greek Letter Represents an unknown angle

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opposite hypotenuse adjacent hypotenuse opposite adjacent

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We need a way to remember all of these ratios…

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Old Hippie Some Old Hippie Came A Hoppin Through Our Apartment

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SOHCAHTOA Old Hippie Sin Opp Hyp Cos Adj Hyp Tan Opp Adj

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Finding SIN, COS, and TAN

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SOHCAHTOA

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Find the sine, the cosine, and the tangent of angle A. Give a fraction and decimal answer (round to 4 places) A

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Find the values of the three trigonometric functions of. 4 3 ? Pythagorean Theorem: (3)² + (4)² = c² 5 = c 5

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Find the sine, the cosine, and the tangent of angle A A B Give a fraction and decimal answer (round to 4 decimal places).

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Finding a Side

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A surveyor is standing 50 feet from the base of a large tree. The surveyor measures the angle of elevation to the top of the tree as 71.5°. How tall is the tree? ° ? tan 71.5° y = 50 (tan 71.5°) y = 50 ( )

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A person is 200 yards from a river. Rather than walk directly to the river, the person walks along a straight path to the rivers edge at a 60° angle. How far must the person walk to reach the rivers edge? 200 x 60° cos 60° x (cos 60°) = 200 x X = 400 yards

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