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Applications Of Right Triangles

In many applications, certain angles are reffered by special names. Two of these are "angle of elevation" and "angle of depression".

Angle of elevation : If the object is placed at higher level then the angle made by the straight line joining the object and the observer with the horizontal through observer, is called the angle of inclination or angle of elevation.

Angle of depression : It is the anlge made by a straight line joining the object and the eye of the observer, with the horizontal through the eye of the observer when the object is placed at lower level.

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3. 1 Solving Right Triangles
3. 2 Law of Cosines
3. 3 Law of Sines
3. 4 The Ambiguous Case of Law of Sines
3. 5 Areas of Triangles
Supplementary Problems

Chapter 4

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