Aaron is constructing a circle circumscribed about a triangle. he has partially completed the construction as shown below. what should be his next step in the construction? . . a. connect the arc markings to angle e to find another bisector. b. use the compass to find the perpendicular bisector for side df. c. connect three arc markings to the vertices form the triangle. d. use the intersection of the arcs to determine the center of the circle.