5.3 Exit Ticket

The circumcenter is the point at which all the perpendicular bisectors of a triangle meet.

The incenter is the point at which the three angle bisectors of a triangle intersect.

Use the properties of triangles, such as the Pythagorean theorem or triangle congruence.

The measure of angle A is 52°.

The length of segment EC is 12.

The sum of the interior angles in a triangle is always 180°.

A perpendicular bisector is a line that divides a segment into two equal parts at a 90° angle.

Angle bisectors are lines that divide an angle into two equal angles.

The circumcenter is equidistant from all three vertices of the triangle.

The incenter is equidistant from all three sides of the triangle.