13
10.5 Trigonometry and Area 1 April 07, 2010 Apr 57:45 PM 105: Trigonometry and Area Objective: Use trigonometry to find the area of any triangle.
10.5 Trigonometry and Area
1
April 07, 2010
Apr 57:45 PM
105: Trigonometry and Area
Objective: Use trigonometry to find the area of any triangle.
10.5 Trigonometry and Area
2
April 07, 2010
Apr 57:49 PM
Warm up
18
20o
Find the area of each triangle.
40o 111. 2. 3.
60o
8
10.5 Trigonometry and Area
3
April 07, 2010
Apr 58:28 PM
10.5 Trigonometry and Area
4
April 07, 2010
Apr 58:29 PM
10.5 Trigonometry and Area
5
April 07, 2010
Apr 58:29 PM
10.5 Trigonometry and Area
6
April 07, 2010
Apr 58:30 PM
10.5 Trigonometry and Area
7
April 07, 2010
Apr 58:32 PM
10.5 Trigonometry and Area
8
April 07, 2010
Apr 57:57 PM
From our worksheet we found out how to calculate the area of any triangle given SAS.
B
a c
Ab
c
10.5 Trigonometry and Area
9
April 07, 2010
Apr 58:04 PM
ExamplesFind the area of the triangular lawn.
10.5 Trigonometry and Area
10
April 07, 2010
Apr 58:07 PM
34 in.
26 in.54o
Examples
Find the area of the triangle.
10.5 Trigonometry and Area
11
April 07, 2010
Apr 58:10 PM
ExamplesFind the area of the triangle.
5 ft
4 ft
65o
10.5 Trigonometry and Area
12
April 07, 2010
Apr 58:12 PM
Challenge Problem
10.5 Trigonometry and Area
13
April 07, 2010
Apr 58:13 PM
Homework
"My dog ate my homework, so I couldn't study for the test. So as his punishment, he'll be taking
my test for me."PlanetPets.com
Pg. 562 # 1116, 2125 odd
