Perpendicular Bisector Circumcenter

Point P is the circumcenter, which segment is equal to PB

• DA
• AC
• PC
• PF

What is the intersection of three perpendicular bisectors called?

• Circumcenter
• Incenter
• Supercenter
• Neither

D is the circumcenter, find ED

• 15
• 16
• 17
• 19

Define: CIRCUMCENTER OF A TRAINGLE

• the intersection point of the three perpendicular bisectors of a triangle 
• when a circle passes through the three vertices of a triangle 
• the point of intersection of three or more lines 
• the intersection point of the three angle bisectors of a triangle 

Which point is equidistant from the vertices?

• Circumcenter
• Incenter
• Neither
• Bilateral

1.  Point Z is the circumcenter of ΔRST. What is TZ?

• 3
• 5
• 4
• 6

Does this show an example of a perpendicular bisector?

• Yes

• No

Is this an example of a perpendicular bisector?

• Yes

• No

Use the Perp Bisector Theorem to find  AD and  BC

• 5;12
• 16;4
• 12; 16
• 5;16

Use the Perp Bisector Theorem to find PQ

• 10
• 3
• -2
• 5