To find: The measures of angles
The measurements of angles
Given data: The measure of angle
Method/Formula used:
The Sine Law of triangle ABC shown in Fig. 1 is
The sum of angles of triangle
Calculations:
The measure of angle
Substitute
Taking first two ratios,
Since sine is positive in second quadrant so another value of
Thus, in triangle ABC ,
Substitute
Since in a triangle only one angle can be obtuse, therefore,
Therefore, the measurements of angles
Chapter 14 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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