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Trigonometry with right triangles

Learn
Hypotenuse, opposite, and adjacentIntro to the trigonometric ratiosTrigonometric ratios in right trianglesTrigonometric ratios in right triangles
Practice
Trigonometric ratios in right trianglesGet 3 of 4 questions to level up!
Learn
Solving for a side in right triangles with trigonometrySolving for a side in right triangles with trigonometry
Practice
Solve for a side in right trianglesGet 3 of 4 questions to level up!
Learn
Right triangle word problemAngles of elevation and depressionRight triangle trigonometry review
Practice
Right triangle word problemsGet 3 of 4 questions to level up!
Learn
Triangle similarity & the trigonometric ratiosTrig challenge problem: verify identitiesTrig challenge problem: trig values & side ratios
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Sine & cosine of complementary anglesSine & cosine of complementary anglesUsing complementary anglesTrig word problem: complementary angles
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Trig ratios of special triangles
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Intro to the Pythagorean trig identity
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Reciprocal trig ratiosFinding reciprocal trig ratiosUsing reciprocal trig ratiosTrigonometric ratios review
Practice
Reciprocal trig ratiosGet 5 of 7 questions to level up!

About this unit

Learn the basics of trigonometry: What are sine, cosine, and tangent? How can we use them to solve for unknown sides and angles in right triangles?