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Law of sines, Trigonometry of Triangles
Formula to find angle and side lengths
The law of sines provides a formula that relates the sides with the angles of a triangle. This formula allows you to relatively easily find the side length or the angle of any triangle.
Law of Sines Formula
Use the formula for the law of sines to determine the measure of angle b below
What is the length of side CB?
Use the fact the sum of the interior angles of a triangle is 180° to calculate all of the angles inside the triangles.
Now, use the law of sines formula to set up an equation.
From her you have several options
.
The easiest one is to use SOHCAHTOA to arrive at the answer.
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