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# Right triangles & trigonometry

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Intro to the Pythagorean theoremIntro to the Pythagorean theorem 2Pythagorean theorem word problem: fishing boatPythagorean theorem examplePythagorean theorem word problem: carpetIntroduction to the Pythagorean theoremPythagorean theorem II

Practice

Use Pythagorean theorem to find right triangle side lengthsGet 5 of 7 questions to level up!

Pythagorean theorem challengeGet 3 of 4 questions to level up!

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Garfield's proof of the Pythagorean theoremBhaskara's proof of the Pythagorean theoremPythagorean theorem proof using similarityAnother Pythagorean theorem proof

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Special right triangles intro (part 1)Special right triangles intro (part 2)30-60-90 triangle example problemSpecial right triangles proof (part 1)Special right triangles proof (part 2)Area of a regular hexagonSpecial right triangles review

Practice

Special right trianglesGet 5 of 7 questions to level up!

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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!

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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!

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Intro to inverse trig functions

Practice

Solve for an angle in right trianglesGet 3 of 4 questions to level up!

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Triangle similarity & the trigonometric ratiosTrig challenge problem: verify identitiesTrig challenge problem: trig values & side ratios

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Sine & cosine of complementary anglesUsing complementary anglesTrig word problem: complementary angles

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Right triangle word problemAngles of elevation and depressionRight triangle trigonometry review

Practice

Right triangle word problemsGet 3 of 4 questions to level up!