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# Angles of Elevation and Depression

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Author: Jonathan Heeren
##### Description:

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.

(more)

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Tutorial

## Notes for Angles of Elevation and Depression

Copy down these notes into your notebook for points

## Angle of Elevation and Depression

This is a short video on how to use angles of elevation and depression to measure lengths and angles

## Angle of elevation and depression

This video goes through a few examples of using angles of elevation and depression.

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