Unit 5 : HWK #5

A line, ray, or segment that divides a segment into two congruent parts at a 90° angle.

• Perpendicular bisector.

• Parallel line.

• Angle bisector.

• Tangent line.

A line, ray, or segment that divides an angle into two congruent parts.

• Angle bisector.

• Perpendicular bisector.

• Median.

• Altitude.

A segment that connects a vertex to the midpoint of the opposite side.

• Median.

• Altitude.

• Angle bisector.

• Perpendicular bisector.

A segment that connects a vertex to the opposite side so that it creates a 90° angle.

• Altitude.

• Median.

• Angle bisector.

• Perpendicular bisector.

The point at which the perpendicular bisectors intersect in a triangle.

• Circumcenter.

• Incenter.

• Centroid.

• Orthocenter.

The point at which the angle bisectors intersect in a triangle.

• Incenter.

• Centroid.

• Circumcenter.

• Orthocenter.

The point at which the medians intersect in a triangle.

• Centroid.

• Circumcenter.

• Orthocenter.

• Incenter.

The point at which the altitudes intersect in a triangle.

• Orthocenter.

• Centroid.

• Circumcenter.

• Incenter.

Given the diagram below, if G is the circumcenter of ΔABC, DC = 16, GB = 21 and AF = 19, find each measure. AG.

• AG = 10

• AG = 15

• AG = 21

• AG = 24

Given the diagram below, if G is the circumcenter of ΔABC, DC = 16, GB = 21 and AF = 19, find each measure. BC.

• BC = 20

• BC = 32

• BC = 22

• BC = 23