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Published byJanel Wade Modified over 8 years ago
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9-1 Tangent Ratio 9-2 Sine and Cosine Ratio Learning Target: I will be able to solve problems using the tangent, sine, and cosine ratios. Goal 1.01
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Some Old Hippy Caught Another Hippy Tripping On Acid This is a way to remember the three trig ratios. Sine, Cosine, and Tangent. A Leg Opposite A Leg Adjacent to A Hypotenuse
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Sine Ratio Some Old Hippy A Leg Opposite A Leg Adjacent to A Hypotenuse Sine A = Opposite Hypotenuse _________
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Examples: Write the ratio for sin M and the sin ratio for L. L M K 7 13 12 sin M = 7/13 = 0.5385 sin L = 12/13 = 0.9231
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Cosine Ratio Caught Another Hippy A Leg Opposite A Leg Adjacent to A Hypotenuse Cosine A = Adjacent Hypotenuse _________
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Examples: Write the ratio for cos M and the ratio for cos K. 2 5 13 M LK cos M = 2/13 = 0.1538 cos K= 5/13 = 0.3846
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Tangent Ratio Tripping on Acid A Leg Opposite A Leg Adjacent to A Hypotenuse Tangent A = Opposite ________ Adjacent
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Examples: 1. Write the ratio for tan M and the ratio for tan L. M L K 3 4 5 tan M = 4/3 = 1.333 tan L = 3/4 = 0.75
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