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Special Right Triangles in Geometry: 45-45-90 and 30-60-90

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Published on Jan 9, 2010

Special Right Triangles in Geometry: 45-45-90 and 30-60-90 degree triangles.
In this video, I discuss two special right triangles, how to derive the formulas to find the lengths of the sides of the triangles by knowing the length of one side, and then do a few examples using them!

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