| Triangle
Trigonometry
This is a long section.
It has 5 parts! These include the following: how to use
trigonometry to find the unknown sides or angles of a right triangle,
how to find the area of a triangle given the lengths of two sides
and the measure of the included angle, how to use the law of sines
to find the unknown parts of a triangle, how to use the law of cosines
to find the unknown parts of a triangle, and how to use trigonometry
to solve navigation and surveying problems. The first part
of this section is about using trigonometry to find the unknowns
of a right triangle. However, you have to know at least three
pieces of data. There can be two angles and a side or vice-versa.
The next section teaches you how to find the area of a triangle
using trigonometry. Then comes the laws of sine and cosine.
These laws teach you the different equations necessary to solve a
triangle's missing parts. Once again you need three pieces
of data: two sides and an angle or vice-versa. See how everything
builds on itself in trigonometry. The last section is all about the
real-life applications to navigation and surveying. This
can be helpful. That is the end of trigonometry.
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