# Basic Trigonometry

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Trigonometry Games
Trigonometry Worksheets

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What is Trigonometry? The word trigonometry means 'triangle measurement'.

Trigonometry is an important tool for evaluating measurements of height and distance. It plays an important role in surveying, navigation, engineering, astronomy and many other branches of physical science.

Basic Trigonometry involves the ratios of the sides of right triangles. The three ratios are called tangent, sine and cosine. It can then be extended to other ratios and Trigonometry in the Cartesian Plane.

These lessons on trigonometry will include the following topics: Basic Trigonometry, Applications of Trigonometry, Trigonometry in the Cartesian Plane, Graphs of Trigonometric Functions, and Trigonometric Identities.

### Applications of Trigonometry

 Trigonometry ProblemsWord Problems Sine ProblemsMissing angles, missing sides, word problems Cosine ProblemsMissing angles, missing sides, word problems Tangent ProblemsMissing angles, missing sides, word problems

### Trigonometry Lessons in Videos

A series of free High School Trigonometry Video Lessons.

### Trigonometric Functions

Trigonometry Calculator with step by step solutions
Right Triangle Trigonometry, Radian Measure and Circular Functions,
Graphing Trigonometric Functions, Simplifying Trigonometric Expressions,
Verifying Trigonometric Identities, Solving Trigonometric Equations,
Complex Numbers, Analytic Geometry in Polar Coordinates,
Exponential and Logarithmic Functions, Vector Arithmetic, Vectors

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