Chapter Nine:  
Right Triangle Trigonometry

Geometry   Notes

Chapter  9

Section  9.1
Section  9.2
Section  9.3
Section  9.4
Section  9.5


Geometry Contents

 

Take notes on the following topics.

Section 9-3  Angles of Elevation and Depression

Vocabulary

Angle of elevation (p. 482) An angle of elevation is the angle formed by a horizontal line and the line of sight to an object above the horizontal line.

Angle of  depression (p. 482)  An angle of depression is the angle formed by a horizontal line and the line of sight to an object below the horizontal line.

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Trigonometry: Solving Problems