Use the tools indicated to plot 3 points, connect two segments connecting the point, construct perpendicular bisectors of each segment; the intersection of the bisectors is the center of the circle; finally draw the circle and report the size of the radius.
ToolImage[0] Move image ToolImage[1] Point ToolImage[15] Segment ToolImage[8] Perpendicular Bisector ToolImage[10 ] Circle ToolImage[40] Move Graphics View ToolImage[41] Zoom Out ToolImage[42] Zoom In