Instructional Video3:21
Curated OER

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

7th - 11th
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...
Instructional Video4:29
Curated OER

How Do You Find a Missing Side of a Right Triangle Using Sine?

6th - 11th
What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find sin(A) in the given right triangle. Use the ratio of the opposite side divided by the hypotenuse to find sin(A). The instructor...