Examples
When deciding which equation to use, look at the information you are given and decide which formula will work best.
Let’s go through some examples.
Example 1:
Find the area of 
, given: a = 5.1, c = 13.2, and B = 49°.
First, draw a diagram with the information that you have been given.
Given the information in this problem, use the equation: 
.
Example 2:
Find the area of , given: A = 16°, C = 35°, and c = 15.2.
First, draw a diagram with the information that you have been given.
Find the missing angle, Angle B:
Now you can find the area of the triangle.
