Angle Bisectors and Perpendicular Bisectors

Point C is in the interior of ∠DEF. If ∠DEC and ∠CEF are congruent, then ray EC is the _________________________ of ∠DEF. 

• angle bisector

• perpendicular bisector

• midpoint

Find GH.

• 4.6

• 3.6

• 9.2

• 7.2

Find QR.

• 4.7

• 1.3

• 2.6

Find AB.

Find UW.

Tell whether the information in the diagram allows you to conclude that point P lies on the perpendicular bisector of LM. Explain your reasoning.

Tell whether the information in the diagram allows you to conclude that point P lies on the perpendicular bisector of LM. Explain your reasoning.

• No. You would need to know that m∠MNP = 90º.

Find m∠ABD.

Find PS.

Find m∠KJL.

• 28

• 16

• 4

• 3