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To find: The remaining angle(s) and side(s) of the triangle, if it(they) exist.
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Answer to Problem 29RE
The three angles are
Explanation of Solution
Given:
The sides
Calculation:
The Cosine Law for a triangle
Here, the capital letters represent the angles and the small letters represent the length of the respective sides of the triangle.
Given the 3 sides, all the angles can be determined as follows:
With the two angles known, the third angle C is determined as shown below:
So, the three angles are
Chapter 8 Solutions
Precalculus
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