Multi Size Triangle 45 and 90 Degrees, Creative GridsThis 2 in 1 ruler allows you to create 45 and 90 degree triangles. Using strips of 5 1 2 inches you can create half square triangles up to 5 inches with the 45 degree side of the ruler. Using the 90 degree side of the ruler you can create 5 inch quarter square triangles from strips of 5 1 2 inches. The measurements required are incorporated into the ruler with easy to read markings. Equipped with Creative Grid's exclusive grip, this ruler slides