Bisectors in Triangles

Find SV

• 18

• 36

• 21

• 9

DF is the perpendicular bisector of CE. If CD = 12 and EF = 5, what is the perimeter of ACDE?

• 29

• 30

• 34

• 36

Tags

CCSS.HSG.CO.C.9

If mzXWY = 20, mzXWZ = 40, and XY = 16, what is the value of YZ?

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

• perpendicular bisector

• angle bisector

• vertex

• divider

Find PQ

• 10

• 3

• -2

• 5

What is the length of DC

• 4

• 1

• 2

• 3

A line, segment, or ray that divides an angle in half

• Perpendicular bisector

• Vertical angles

• Angle bisector

• Midsegment

A line, segment, or ray that passes through the midpoint of a side that is creates a 90 degree angle with that side.

• Perpendicular bisector

• Angle bisector

• Median

• Altitude

In a triangle, if the angle bisectors are concurrent, what is the name of the point of concurrency?

• centroid

• orthocenter

• circumcenter

• incenter

How can you use perpendicular bisectors to find the circumcenter of a triangle?

• By finding the point of intersection of the perpendicular bisectors of the sides of the triangle.

• By finding the midpoint of the sides of the triangle

• By finding the point of intersection of the medians of the triangle

• By finding the point of intersection of the altitudes of the triangle