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Finding Missing Angles Using Trig Ratios Lesson Oct 1 2014
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3.3 Finding Missing Angles
1
October 01, 2014
2.3 Finding Missing Angles
3.3 Finding Missing Angles
2
October 01, 2014
You can find an angle in a right angle triangle by
using the inverse trigonometric ratio.
Inverse trigonometric
functions find angles
rather than a side
3.3 Finding Missing Angles
3
October 01, 2014
Example 1. Find angle W.
3.3 Finding Missing Angles
4
October 01, 2014
Example 2. Find angle S.
3.3 Finding Missing Angles
5
October 01, 2014
Example 4. A 10-foot ladder leans against the side of a building with its base 4 ft. from the wall.
What angle, to the nearest degree, does the ladder make with the ground?
3.3 Finding Missing Angles
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October 01, 2014
Example 3. Find angle K.