Unit 3, Day 2: Objective: Sine, Cosine, and Tangent functions using similar triangles.
Define: Sine, cosine, tangent (abbreviated sin, cos, and tan) can calculate sides of the triangle when the angles are known.
Pictures: These pictures show how to use sine, cosine, and tangent and that they do not depend on the size of triangles if they are similar.
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Quiz:
Answer Key:
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