To find: The all to three significant digits and angles.
Answer to Problem 48WE
The angles of the
Explanation of Solution
Given information:
The given sides of a triangle
Calculation:
Consider the triangle is shown below.
Since we do not know the any of the angle measure, we cannot use the law of sine.
Use the law of cosine.
Substitute the value of
Similarly,
Thus, the third angle is:
Therefore, the angles of the triangle are
Chapter 13 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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