Review of special right triangles, including properties and problem-solving techniques.

Khan Academy

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Special right triangles intro (part 1) Special right triangles intro (part 2) Special right triangles. 30-60-90 triangle example problem ...

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Special right triangles intro (part 1) Special right triangles intro (part 2) ...

2024年9月26日 · The reference sheet includes area and volume formulas, special right triangles, and notes on radians/degrees in a circle that students can refer to in order to simulate realistic SAT question solving.

Learn the Pythagorean theorem and how to apply it in various geometric problems on Khan Academy.

A few more 45-45-90 examples and an introduction to 30-60-90 triangles. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and …

Use special triangles to determine the values of sine, cosine, and tangent for π/3, π/4, and π/6. Apply special right triangles to the unit circle and use them to express the values of sine, cosine, and tangent for x, π ± x, and 2π ± x in terms of their values for x, where x is any real number.