Perpendicular Bisector and Circumcenter

5.1a Perpendicular Bisectors

Complete the warm up at the top of the page!

Multiple Choice

The _____________ of a triangle is a segment whose endpoints are a vertex of a triangle and the midpoint of the side opposite the vertex

• Angle bisector

• Altitude

• Median

• Perpendicular Bisector

Multiple Choice

The _______________ of a triangle is where the altitudes of the triangle intersect.

• Incenter

• Orthocenter

• Circumcenter

• Centroid

Multiple Choice

A(n) _______________ is a segment that joins a vertex of a triangle and is perpendicular to the opposite side.

• Centroid

• Median

• Altitude

• Orthocenter

What are the properties of a Segment Bisector and a Perpendicular Bisector?

• Any segment, line, or plane that intersects a segment at its midpoint.

• A perpendicular segment bisector.

Multiple Choice

The _______________ of a triangle is where the altitudes of the triangle intersect.

• Incenter

• Orthocenter

• Circumcenter

• Centroid