С
Here are 3 points in the plane. Select all the straightedge
and compass constructions needed to locate the point
that is the same distance from all 3 points.
B
A. Construct the bisector of angle CAB.
B. Construct the bisector of angle CBA.
C. Construct the perpendicular bisector of BC.
D. Construct the perpendicular bisector of AB.
E. Construct a line perpendicular to AB through point C.
F. Construct a line perpendicular to BC through point A.