To find: The area of triangle
Answer to Problem 21E
Explanation of Solution
Given information:
Calculation:
We have two formulas. It depends on which information we are given as to which one we use.
If we are given two sides and the included angle we use,
If we are given (or can figure out) three angles and a side we use,
In this problem we are given one side and two angles, so we use the second equation,
First we need to find the angle C .
Thus,
Chapter 5 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
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