Bisecting a Segment

If AB=50, which definition would explain why AM=25?

• Definition of Congruent

• Definition of Midpoint

• Definition of Segment

Given that AM=MB, what definition allows us to say that the respective segments are congruent?

• Definition of Congruent

• Definition of Midpoint

• Definition of Segment

Definition: to cut in half or to cut into two equal pieces

• perpendicular

• bisect

• congruent

• collinear

Definition: part of a line with two endpoints
Notation:    ̅

• line

• collinear

• perpendicular

• segment

B is the midpoint of AC.  Find AB.

• 2

• 16

• 8

• 4

Definition: point in the middle of a segment

• bisect

• midpoint

• point

• collinear

Name the construction.

• Angle bisector

• Perpendicular line to a point not on a line

• Perpendicular line to a point on the line

• Perpendicular bisector of a line segment

Which one is the correct construction for a perpendicular bisector?

• 1

• 2

• 3

• 4

List the steps of the perpendicular bisector construction in order from 1 to 4.

a

b

c

d

1

4

3

2