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Right triangles & trigonometry

Pythagorean theorem

Pythagorean theorem proofs

Special right triangles

Ratios in right triangles

Introduction to the trigonometric ratios

Solving for a side in a right triangle using the trigonometric ratios

Sine & cosine of complementary angles

Solving for an angle in a right triangle using the trigonometric ratios

Modeling with right triangles

Special right triangles

Explore the characteristics and properties of 30-60-90 and 45-45-90 triangles, enhancing problem-solving skills and understanding of geometric relationships.

200+ videos and assessments

Standards aligned

Vetted by experts

VIDEOS

Special right triangles proof (part 1)

Khan Academy

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7th - 10th Grade

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10 Qs

30-60-90 triangle example problem

Khan Academy

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8th - 12th Grade

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10 Qs

Area of a regular hexagon

Khan Academy

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7th - 12th Grade

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10 Qs

Special right triangles proof (part 2)

Khan Academy

•

7th - 10th Grade

•

10 Qs

Special right triangles

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