Progress
Special right triangles
Quiz 1
5 questions
Introduction to the trigonometric ratios
Solving for a side in a right triangle using the trigonometric ratios
Solving for an angle in a right triangle using the trigonometric ratios
Modeling with right triangles
Trigonometric ratios and similarity
Sine and cosine of complementary angles
The reciprocal trigonometric ratios
Quiz 2
5 questions
The law of sines
The law of cosines
Solving general triangles
Quiz 3
5 questions
Unit test
10 questions

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About this unit
Triangles are not always right (although they are never wrong), but when they are it opens up an exciting world of possibilities. Not only are right triangles cool in their own right (pun intended), they are the basis of very important ideas in analytic geometry (the distance between two points in space) and trigonometry.