Given a sine, cosine, or tangent value, find the principle angle that has this value. In other words, find the arcsine, arccosine, or arctangent of that value. Students receive immediate feedback and have the opportunity to try questions...

A complete reference guide to the sine function. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

Learn about the tangent with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

Learn how to use trig functions to find an unknown side length in a right triangle.

A collection of lessons and practice exercises on trigonometric ratios. Students will learn how to solve for an angle and for a side, and to apply trigonometry in setting up and solving word problems.

Students learn about trigonometry, geometry and measurements while participating in a hands-on interaction with LEGO MINDSTORMS NXT technology. First they review fundamental geometrical and trigonometric concepts. Then, they estimate the...

Site provides five example problems dealing with real life trigonometry applications. Hints and solution links are provided.

A math tutorial for many areas of math that contains over 2,500 pages of explanations and examples in algebra, trigonometry, calculus, and basic mathematics. Also has exams and ask-an-expert function.

If you know or calculate the field of view for your camera, you can use it to measure distances and the height of almost anything. It's all a matter of basic trigonometry.

Take a tour of trigonometry using degrees or radians! Look for patterns in the values and on the graph when you change the value of theta. Compare the graphs of sine, cosine, and tangent.

The University of Saskatchewan offers this resource for the review of mathematical concepts that students need to enter university level math courses. Topics include mental arithmetic, algebra, geometry, trigonometry, exponential and...

This free online graphics calculator is an excellent resource to aid with studies in algebra, calculus, trigonometry, etc.

In this activity, students will learn that math is important in navigation and engineering. Ancient land and sea navigators started with the most basic of navigation equations (Speed x Time = Distance). Today, navigational satellites use...

Math formulas, definitions, properties, diagrams and examples from Geometry and Trigonometry.

[Free Registration/Login may be required to access all resource tools.] Looks at triangle problems where you are given the area and must use trigonometry to find unknown sides or angles.

Explore sine, cosine, and tangents compared to the selected angle.

This Clark University trigonometry tutorial site features questions and answers about what students can learn from trigonometry.

Looking for a 10-minute review of the major concepts of trigonometry? This site is a quick recap of degrees and radians, SOH CAH TOA, Pythagorean identities, and special right triangles are all found here.

The Univerisity of Charles Sturt provides math help in various areas including trigonometry. Site includes copies of past exams with solutions.

This math lesson lists the product and sum formulas, and gives detailed example of using them to solve algebraic trigonometry problems.

This site from NASA is for anyone who has ever asked "Why do I need to know this," this is a must read for you. It documents historical uses of trigonometry.

Lesson plan which details how to have students determine the distance to an object by sighting it from two different locations and knowing the distance between these locations. As an advanced alternative, trigonometry can be used to...

This page from Integrated Publishing discusses the ambiguous case, which arises in trigonometry when you are given two sides of a triangle and the angle opopsite one of them. In an ambiguous case two different triangles could conform to...

Read a lesson, look at examples, and try easy, medium, and advanced problems from a variety of trigonometry topics: radian measure of angles, trigonometric functions, trigonometric identities, and modeling with trigonometric functions.