Question

How to find trigonometric ratio?

Answer 1

The trig ratios can be used to find lots of information, and one of their main purposes is to help solve triangles. To solve a triangle means to find the length of all the sides and the measure of all the angles.

This lesson will cover how to use trig ratios to find the side lengths of a triangle.

There are three steps:

1. Choose which trig ratio to use.

- Choose either sin, cos, or tan by determining which side you know and which side you are looking for.

2. Substitute

- Substitute your information into the trig ratio.

3. Solve

- Solve the resulting equation to find the length of the side.

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