Special right triangles intro (part 2) (video) | Khan Academy
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Special right triangles intro (part 2) (video) | Khan Academy
A 30-60-90 triangle is a special right triangle with angles of 30, 60, and 90 degrees. It has properties similar to the 45-45-90 triangle. The side opposite the 30-degree angle is half the length of the hypotenuse, and the side opposite the 60-degree angle is the length of the short leg times the square root of three. Alternatively, the ratio ...
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