Special right triangle is 90°, leaving the remaining angle to be 30°. Right triangles whose sides are of integer lengths, with the sides collectively known as Pythagorean triples, possess angles that cannot all be rational numbers of degrees. (This follows from Niven's theorem.) They are most useful in that they may be easily remembered and any multiple of the sides produces the same relationship. Using Euclid's formula for generating Pythagorean triples, the sides must be in the ratio where "m" and "n" are any positive integers such that . There are several Pythagorean triples which are well-known, including those with sides in the
Right-angle weave Right-angle weave Right-Angle weave stitch, also known as RAW, is an off-loom bead weaving technique. Beads are stitched together with thread only making right angle turns, hence the name. The result is an almost fabric like piece of beadwork. Right-Angle weave can be woven with either one needle or two. With single needle right-angle weave, the thread path moves in a figure-eight pattern. For double needle right-angle weave, the threads cross each other along the center bead of each stitch as they head in opposite directions. RAW can be formed into flat pieces, tubes, or 3 dimensional figures. There are