Author:
Jonathan Heeren

9.3.4.2 Apply the trigonometric ratios sine, cosine and tangent to solve problems, such as determining lengths and areas in right triangles and in figures that can be decomposed into right triangles. Know how to use calculators, tables or other technology to evaluate trigonometric ratios.

a) I can determine the correct trigonometric ratios in a

right triangle.

b) I can determine lengths and areas in right triangles,

and figures containing right triangles, using sine,

cosine, and tangent.

c) I can use calculators, tables or other technology to

find angle measures using inverse operations.

Tutorial

This short video will show how the basic trig functions work.

This video walks through the basic trig functions and works through some examples.

This is a short video with some examples of setting up the a few trig ratios.

This will use inverse functions to solve for angle measures.

This is an example of using multiple trig ratios to find all sides and angles of a right triangle.