Sam wants to inscribe a square in a circle using only a compass and straightedge. he will first construct a circle and locate its center. he will then perform the following steps. step 1: use the straightedge to draw a diameter of the circle. step 2: copy the length of the diameter and construct another diameter. step 3: join the points of intersection of the endpoints of the diameters and the circle. what is the error in sam's steps?