Trigonometry: The Study of Triangles
What is Trigonometry?
Trigonometry is the branch of mathematics that deals with the relationships between the sides and angles of triangles. It is used in a wide variety of applications, including surveying, navigation, and architecture.
The Sine, Cosine, and Tangent Functions
The three most important trigonometric functions are the sine, cosine, and tangent. These functions are defined as follows:
*The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.
*The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.
*The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.
These functions can be used to solve a variety of problems involving triangles, such as finding the length of a side or the measure of an angle.
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