1.5+Segment+&+Angle+Bisectors

=Segment & Angle Bisectors=

This section involves using and finding the measures of angle and segment bisectors. In order to accomplish these tasks, the midpoint formula also comes into play.


 * Key points:**
 * Finding the coordinates of a segment's midpoint: (the midpoint formula)
 * Find the coordinates of a segment's endpoints
 * Angle Bisectors
 * Finding the measure of an angle
 * Dividing an angle measure in half

(from pg 34)

Bisect:** to divide into two congruent parts
 * Vocab:
 * Midpoint**: the point that divides, or bisects a segment into two congruent segments.
 * Segment Bisector**: is a segment, ray, line, or plane that intersects a segment at its midpoint.
 * Angle Bisector**: a ray that divides an angle into two congruent, adjacent angles.

Midpoint formula: Is used when you need to find the midpoint and you have the coordinates of two points.



Example 3: Finding the Measure of an Angle


[] [] []
 * Extra help:**

[]
 * Practice Problems:**

Sources: (textbook pgs 34-37)

Example 1: Example 2:
 * Answers:**

Example 3: