Question

geometry question?

1. Which geometric principle is used in the construction shown below
A. The intersection of the angle bisectors of a triangle is the center of the inscribed circle.
B. The intersection of the angle bisectors of a triangle is the center of the circumscribed circle.
C. The intersection of the perpendicular bisectors of the sides of a triangle is the center of the inscribed circle.
D. The intersection of the perpendicular bisectors of the sides of a triangle is the center of the circumscribed circle.

Answer 1

i think its the first one.