Warm Up
Angles of Depression/Elevation
Law of Sines & Area of a
A December 10th, 2013
B December 11th, 2013
Angles of Elevation/Depression
Example
Example
Area of a Triangle w/ Height
How to Label the Sides/Angles
The Area of a Triangle Formula
The Area of a Triangle Formula
Example
Example
Example
Law of Sines / The Sine Rule
So when do I use law of sines and when do I use trig ratios? Use basic trig ratios and equations for
RIGHT TRIANGLES ONLY! Law of Sines can be used when not a right
triangle and given:
Law of Sines / The Sine Rule
Example-Finding Sides
Example-Finding Angles
Examples:
Example
Homework
A Day Edition 2 Pg. 404 #1-3, 5-6, 9 Pg. 413 #1 and #4 Pg. 417 #1 Pg. 418 #1-2
B Day Edition 1 Pg.329-330 #1-3, 5-6, 12 Pg. 338-339 #1 and #4 Pg. 341 #1 Pg. 343 #1-2
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