What is the first step in constructing an inscribed circle? Draw any dimeter in the circle Using a compass, construct a perpendicular bisector through the diameter of the circle Draw lines to connect the four endpoints created by two diameters on the circle Use a compass to mark arc lengths the length of the circle's radius.

The correct first step in constructing an inscribed circle is actually to draw any diameter in the circle. This can be done by using a compass to draw a line that passes through the center of the circle and ends on the circle itself.