Added by Will on April 04, 2002 at 19:37:07:
In a 45°, 45°, and 90° right and equilateral triangle, the two shorter sides will be x and the hypotenuse will be x*sqrt(2) of x radical 2
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In a 30°, 60°, and 90° right triangle, the shortest side will be x, the other leg will be x*sqrt(3) or x radical 3, and the hypotinuse will be 2x.
Check it with the Pythagorean Theorem, it works.