Segment and Angle Bisectors

Front

What is the point that divides a segment into two congruent segments?

Back

Midpoint

Front

What do you call a segment, ray, line, or plane that intersects a segment at its midpoint?

Back

Segment bisector

Front

If Ray QS bisects

Back

m

Front

If Ray QS bisects

Back

m

Front

If line l bisects a segment and x = 5, what is the value of x?

Back

x = 5

Front

What is the definition of a bisector in geometry?

Back

A bisector is a line, segment, or ray that divides an angle or segment into two equal parts.

Front

What is the relationship between the angles formed by a bisector?

Back

The angles formed by a bisector are congruent.

Front

How do you find the measure of an angle when given its bisector?

Back

Divide the measure of the angle by 2.

Front

What is the formula for finding the midpoint of a segment with endpoints (x1, y1) and (x2, y2)?

Back

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Front

If a segment is divided into two equal parts, what can we say about the lengths of those parts?

Back

The lengths of the two parts are congruent.