Answer :
Investigation 5-1: Constructing the Perpendicular Bisectors of the Sides of a Triangle
Tools Needed: paper, pencil, compass, ruler
1. Draw a scalene triangle.
2. Construct the perpendicular bisector (Investigation 1-3) for all three sides.
The three perpendicular bisectors all intersect at the same point, called the circumcenter.
Circumcenter: The point of concurrency for the perpendicular bisectors of the sides of a triangle.