Radian describes the plane angle subtended by a circular arc as the length of the arc divided by the radius of the arc. One radian is the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle.
Step 3: Fold the lower left corner up toward the center of the quilt making sure the fold is on the bias. Step 4: Fold the top left corner down toward the center of the quilt making sure the fold is on the bias. Step 5: Making sure the fold is on the bias, fold the top right corner down toward the center of the quilt.
It is how I bind the majority of my quilts. Part I-How to make the binding strip. First, measure your quilt. The quilt that I am binding is 57 x 73. Add 57 + 57 + 73 + 73 + 12 (to account for miters and seams) = 272. Divide that by 40 (a conservative estimate of the usable with of the fabric)= 6.8.