Answer:
Construct the perpendicular bisectors of each side
Choice A is correct
Step-by-step explanation:
Circumscribe means to draw on the outside of a geometric figure just touching the corner points but never crossing.
The steps in constructing a circle circumscribed about a triangle;
Construct the perpendicular bisector of one side
Construct the perpendicular bisector of another side
Where the lines cross is the center of the Circumscribed circle .
