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Trigonometry Index

Trigonometry (from Greek trigonon "triangle" + metron "measure")

Want to Learn Trigonometry? Here are the basics!
Follow the links for more.

 
The Triangle
Interactive Triangles
Introduction to Trigonometry
 
Sine, Cosine and Tangent
Sohcahtoa
Sine Graph Exercise
Graphs of Sine, Cosine and Tangent
Unit Circle
 
Solving Triangles by Reflection
Finding an Angle in a Right Angled Triangle
Finding a Side in a Right Angled Triangle
The Law of Sines
The Law of Cosines
The three angles add to 180°
Area of a Triangle without a Right Angle
 
Congruent Triangles
Similar Triangles
 
Solving Triangles
Solving AAA Triangles
Solving AAS Triangles
Solving ASA Triangles
Solving SAS Triangles
Solving SSA Triangles
Solving SSS Triangles
 
Trigonometric Identities
Triangle Identities