Triangle Angle Bisector Theorem

The figure is an example of a(n) ...

• angle bisector

• perpendicular bisector

• median

• midsegment

Name the angles from LARGEST to SMALLEST

• R, S, T

• S, T, R

• S, R, T

• T, S, R

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

What is the missing statement in the proof?

• 2m∠ABD = m∠ABD + m∠ABD

• m∠ABD = m∠DBC

• m∠ABC = m∠ABC

• m∠ABD +m∠ABD = m∠ABD + m∠DBC

According to the Triangle Angle Bisector Theorem, which proportion is set up correctly?

• All of the above
  

Find BD.

• BD = 20

• BD = 2

• BD = 4

• BD = 10

Find the length of TU

• 15

• 12

• 26

• 13

What is the missing statement in the proof?

• 2m∠ABD=m∠ABD+m∠ABD

• m∠ABD=m∠DBC

• m∠ABC=m∠ABC

• m∠ABD+m∠ABD=m∠ABD+m∠DBC

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

• ∆BAC≅∆DAC

• BC=DC

• ∡B≅∡D

• ∡BAC≅∡DAC

What postulate or theorem will prove ΔWYZ≅ΔVYZ?

• SSS

• SAS

• AAS

• ASA

• HL