Angle Bisector of Triangles

Name the dashed segment:

• altitude

• angle bisector

• perpendicular bisector

• median

A ray that divides an angle into two congruent angles is called .............

• perpendicular bisector

• angle bisector

• vertex

• divider

Find BC.

• BC = 4

• BC = 16

• BC = 12

• BC = 24

What is a line segment or ray drawn from a vertex that divides the angle into two congruent angles?

• Median of a Triangle

• Altitude of a Triangle

• Perpendicular Bisector of a side of a Triangle

• Angle Bisector

• Midpoint of a Line Segment

• A
• B
• C
• D

Mix and Match

• Side Angle Side

• CPCTC

• Reflexive Property

• Given

• Definition of Angle Bisector

Find the length of TU

• 15

• 12

• 26

• 13

If DA bisects IE, then

• ID=ED

• IA=EA

• <IDA=<EDA

• <IAD and <EAD are right angles

What is the "statement" for step 2 of the proof?

• ∆BAC≅∆DAC

• BC=DC

• ∡B≅∡D

• ∡BAC≅∡DAC

A segment that bisects one of the angles of a triangle

• Angle Bisector

• Perpendicular Bisector

• Altitude

• Midsegment