Key Properties of Lines

What does it mean to have diagonals bisect each other?

• That go across each other

• The point where diagonals meet is the midpoint

• The angles are congruent

• The full diagonal line is congruent to the other diagonal line

What type of lines have a point equidistant from the vertices of a triangle?

• altitudes

• angle bisectors

• median

• perpendicular bisectors

Which line is a perpendicular bisector?

• XY

• BY

• AZ

• XC

What type of lines are shown

• perpendicular bisectors

• medians

• altitudes

• angle bisectors

what type of lines are shown:

• perpendicular bisector

• angle bisectors

• altitudes

• medians

Which line is an angle bisector?

• XY

• BY

• AZ

• XC

What type of line is shown by CD

• Altitude

• perpendicular bisector

• median

• angle bisector

What information are you missing from FG to KNOW that it is a perpendicular bisector?

• congruent angle markings

• congruent side markings

• The right angle

• nothing