In Review Exercises 18 to 23, use construction methods with the accompanying figure.
Given: 


Find:  The circumcenter 
To find: The circumcenter of the triangle ABC.
Given:
The triangle ABC is shown below.
Definition used:
Circumcenter:
The point at which the perpendicular bisectors of the sides of a triangle meet is the circumcenter of the triangle.
Calculation:
Consider the triangle ABC.
Draw the perpndicular bisectors for the sides AB, BC, CA of the triangle ABC.
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