How Do You Find the Cosine of an Angle in a Right Triangle?

What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find cosine(A) in the given right triangle. Use the ratio of the adjacent side divided by the hypotenuse to find cos(A). The instructor draws a diagram and labels all the sides and angles. She then explains how to apply the formula to find cos(A).

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Resource Details
Grade
7th - 11th
Subjects
Math
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Resource Types
Videos
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Instructional Strategy
Flipped Classroom
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