Learn Trigonometry


Find resources here that will help you understand the math that governs lines, shapes, and 3D objects and their interactions, as well as trigonometric ratios, equations, and trigonometric intervals. Find trigonometry cheat sheets, trigonometry calculators, examples, word problems, charts, and other resources. Whether you're in high school or learning college trigonometry, we have you covered.

We have 13 resources for learning Trigonometry including educational Online Classes, Websites, YouTube & Online Videos, and Books, from providers such as Khan Academy, Life of Fred Math, Free Math Help, and IXL. Find 3 more resources in subtopics including Right Triangles and Trigonometry Identities.


Free

Graphs of trigonometric functions


High School - College | Online class

Sal draws the graph of the tangent function based on the unit circle definition of the function.

$39

Life of Fred Trigonometry Expanded Edition


High School | Book

A day and a half in our hero’s life. • Cuisine! See what dinner in a limo is really like • Entrepreneurship! Learn how to create a best-selling board game • Sports! Witness the boxing match of the...

$360 yearly

Math Curriculum Trigonometry


High School | Online resource

Trigonometry Angles and Triangles Unit Preview, Measuring Angles, Areas of Triangles Sine and Cosine Functions – Part I Unit Preview, Definitions – Sine and Cosine, Identities , Addition Formulas...

Free

Trigonometric equations and identities


High School - College | Online class

Learn about the inverse functions of sine, cosine, and tangent, and how they are defined even though the functions are not really invertible. These functions will be very helpful when you will...

Free

Trigonometric equations and identities


High School - College | Online class

Learn about the inverse functions of sine, cosine, and tangent, and how they are defined even though the functions are not really invertible. These functions will be very helpful when you will...

Free

Trigonometry


7th - High School | Online class

Missions recommend what to learn next, help you remember what you’ve learned by mixing skills, and save your progress.

Free

Trigonometry


7th - High School | Online resource

School yourself in trigonometry! Free, interactive video lessons on trigonometry! Trigonometry helps you understand any topic that involves distances, angles, or waves. The trig functions (sin,...

$10 monthly

Trigonometry


7th - 9th | Online resource

Practice trigonometry skills on IXL, have fun, and win awards!

Free

Trigonometry


9th - High School | Online video/YouTube

172 videos about all aspects of Trigonometry.

Free

Trigonometry Help


7th - High School | Online resource

Trying to keep up with trig can be hard at first — suddenly you’re learning new terms like sine, cosine, and tangent, and having to figure out more triangles than you ever cared about. Fortunately...

$150
Paid add-ons

Trigonometry (online)


High School | Online class

This course addresses analyzing functions, transformations, and inverse functions. Students will also learn about radians, the unit circle, right-triangle trigonometry, trigonometric functions,...

$35 monthly

Trigonometry Online Course


High School - College | Online class

Join Dr. William Murray in his Trigonometry online course which breaks down difficult-to-understand concepts with clear explanations and tons of example walkthroughs. Dr. Murray brings his 15+...

Free

Trigonometry with general triangles


5th - 8th | Online class

Learn about the Law of sines and how to use it in order to find missing side lengths and angles in general triangles.

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Frequently Asked Questions

What's the best way to learn Trigonometry?

The best learning resource is the one that you will stick with. For some students, that means a resource that's fun and engaging like a mobile or PC game. For others it's a resource that lets them learn on their own time, like a mobile app or YouTube channel. For other students, it's a resource that emphasizes reinforcement, such as a workbook or set of printable worksheets. The best way to figure out what is right for you is to look at a wide range of resources, keeping your selection criteria in mind. Search our database of 13 resources for learning Trigonometry.

What should I consider when choosing a learning resource for Trigonometry?

Think about what is going to help you continue with the resource and actually complete it. Primary considerations should be:

  • Time commitment - how much time can you spend with this resource per day/week?
  • Portability - will you be studying at home or in other places, such as on the bus or after school?
  • Reinforcement learning - does the resource offer reinforcement? Think about whether you'll want exercises or printable worksheets to help you practice what you learned.
  • Price - does the resource require a monthly subscription? This may be fine for topics you can learn in a month or two, but it may be prohibitively expensive otherwise.
Search our database of 13 resources for learning Trigonometry.

I have specific needs for learning Trigonometry. Where can I find learning materials to meet my needs?

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