Circumcenter and Incenter

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 

Tags

CCSS.HSG.C.A.3

Define: INCENTER OF A TRIANGLE

• the intersection point of the three angle bisectors of a triangle 
• when three or more lines intersect at a single point 
• the intersection point of the three perpendicular bisectors of a triangle 
• the point of intersection of three or more lines 

Tags

CCSS.HSG.C.A.3

Which of the images represents the Circumcenter of a Triangle

• First
• Second
• Third

Tags

CCSS.HSG.C.A.3

Which of the images represents the Incenter of a Triangle

• First
• Second
• Third

Tags

CCSS.HSG.C.A.3

Name the point of concurrency shown.

• Circumcenter
• Incenter
• Supercenter
• Neither

Tags

CCSS.HSG.C.A.3

Name the point of concurrency shown.

• Circumcenter
• Incenter
• Neither
• Center-center

Tags

CCSS.HSG.C.A.3

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

• angle bisector
• perpendicular bisector
• median
• midsegment

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.C.10

CCSS.HSG.CO.C.9

Find the length of PO.

• 32
• 35
• 26
• 29

Tags

CCSS.HSG.C.A.3

If m∠CAP = 34° , find ∠CAB.

• 17°
• 34°
• 68°
• 90°

Tags

CCSS.HSG.C.A.3

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

• 3
• 5
• 4
• 6

Tags

CCSS.HSG.C.A.3