Circumcenter & Incenter

Front

Define: CIRCUMCENTER OF A TRIANGLE

Back

The intersection point of the three perpendicular bisectors of a triangle.

Front

What are Concurrent Lines?

Back

Three or more lines that intersect at the same point.

Front

If m∠LJK = 28°, what is m∠MLK?

Back

124°

Front

What is the Incenter of a triangle?

Back

The point of intersection of the three angle bisectors of a triangle.

Front

If P is the incenter of triangle JKL, and OP = 8, what does this represent?

Back

The distance from the incenter to a vertex or side of the triangle.

Front

What is the relationship between the circumcenter and the vertices of a triangle?

Back

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

Front

How do you find the circumcenter of a triangle?

Back

By finding the intersection of the perpendicular bisectors of the sides of the triangle.

Front

What is the significance of the circumradius?

Back

The radius of the circumcircle, which passes through all three vertices of the triangle.

Front

If m∠CAP = 34°, what is m∠CAB?

Back

68°

Front

What is a Perpendicular Bisector?

Back

A line that divides another line segment into two equal parts at a 90° angle.