Soh-Cah-Toa and Trigonometry Functions -- This person, more than any other mathematician, has helped countless students learn basic trigonometric functions. So who exactly is this Soh-Cah-Toa?

Angle Functions Quiz -- Take this self-quiz to review angle functions terms and concepts like sine, cosine, and tangent.

My Angle Functions Flashcards -- Use these flash cards to practice your grasp of sine, cosine, tangent, and dozens of other angle functions terms.

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.

Sine Function in a Right Triangle -- Review how the basic concept of the sine function works, using this Formula Solver! Series program.

Sine and ArcSine in a Right Triangle -- Explore how to use sine and arcsine in a triangle using this Formula Solver! Series program.

Cosine Function in a Right Triangle -- Review how the basic concept of the cosine function works, using this Formula Solver! Series program.

Cosine and ArcCosine in a Right Triangle -- Explore how to use cosine and arccosine in a triangle using this Formula Solver! Series program.

Tangent Function in a Right Triangle -- Review how the basic concept of the tangent function works, using this Formula Solver! Series program.

Tangent and ArcTangent in a Right Triangle -- Explore how to use tangent and arctangent in a triangle using this Formula Solver! Series program.

Cosecant Function in a Right Triangle -- Use this Formula Solver! Series program to learn how to calculate the cosecant of an angle.

Secant Function in a Right Triangle -- Use this Formula Solver! Series program to learn how to calculate the secant of an angle.

Cotangent Function in a Right Triangle -- Use this Formula Solver! Series program to learn how to calculate the cotangent of an angle.

Radians -- Converting between degrees and radians is a key math concept. This Formula Solver! Series program will walk you through the steps.

Area of a Triangle Using Sine -- How do you figure out the area of a triangle if you only know two sides and the angle between them? This formula solver will show you!

Law of Cosines -- The Law of Cosines describes fundamental properties of triangles. Use this Formula Solver! Series program to learn how it works.

Law of Sines -- The Law of Sines describes fundamental properties of triangles. Use this Formula Solver! Series program to learn how it works

Law of Sines (Ambiguous Case) -- Explore the ambiguous case of the Law of Sines using this Formula Solver! Series program.

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This work is licensed by Rudy Lopes under a Creative Commons Attribution License (CC-BY 2.0), and is an Open Educational Resource.

Last edited by Rudy Lopes on May 10, 2010 1:59 pm GMT-5.