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Finding Cosine of an Angle

Videos, worksheets, games and acivities to help students learn how to find the cosine of an angle.

 

 

Cosine Ratios :
Right triangles have ratios that are used to represent their base angles. Cosine ratios, along with sine and tangent ratios, are ratios of two different sides of a right triangle. Cosine ratios are specifically the ratio of the side adjacent to the represented base angle over the hypotenuse.

 

 

Finding the Cosine of an Angle
This video shows you how to use the length of the sides of a right triangle to find the co-sine of an angle.

 

 

Cos - Basic Trigonometry
Students learn to find the missing side lengths and the missing angle measures in right triangles using cosine.

 

 

Using the CAH Formula

 

 

 

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