Right angle Right angle In geometry and trigonometry, a right angle is an angle of exactly 90° (degrees), corresponding to a quarter turn. If a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles. The term is a calque of Latin "angulus rectus"; here "rectus" means "upright", referring to the vertical perpendicular to a horizontal base line. Closely related and important geometrical concepts are perpendicular lines, meaning lines that form right angles at their point of intersection, and orthogonality, which is the property of forming right angles, usually applied
Right-angle weave also variations on the basic stich like cubic right angle weave, or CRAW. Seed beads, fire polished beads and crystal beads are common choices in pieces using right-angle weave. This stitch is said to have originated somewhere in Africa, but examples can be found in beadwork from many cultures, including Philippines, New Guinea and England. Bead artists are known to use right-angle weave stitch to cover forms, such as vases, beads and other objects. 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,