Soh-Cah-Toa and Trigonometry Functions

This person, more than any other mathemetician, has helped countless students learn basic trigonometric functions. So who exactly is this Soh-Cah-Toa? Continue reading

Non-Right Triangles Study Sheet

Use this Smartacus Study Sheet to learn how to find sides and angles in non-right triangles (also known as oblique triangles). An important resource for your trigonometry class, it also prints for easy reference. Continue reading

My Angle Functions Flashcards

Use these flash cards to practice your grasp of sine, cosine, tangent, and dozens of other angle functions terms. Continue reading

Law of Cosines

The Law of Cosines describes fundamental properties of triangles. Use this Formula Solver! Series program to learn how it works (and to check your homework answers, too!) Continue reading