1. Angle Bisectors Adam J. Flick Sarah A. Porter

2. Congruent Angles- two angles with the same measure Example ◦Given:Angle 1 is congruent to angle 2 measure of angle 1=2x+15 measure of 2=3x-2 Find X Therefore: 2x+15=3x-2 X=17

3. Bisector- the ray that separates the given angle into two congruent angles. ◦Theorem 1.4.1: There is one and only one angle bisector for a given angle.

4. How to Construct a Bisector 1.With a compass, mark an arc to intersect both sides of the angle. 2.Mark an arc from the previous intersect to inside the angle. 3.Repeat from other side of the angle. 4.Draw a line from where the intersecting arcs meet to the vertex.

5. Bisecting Angles with Mr. Flick is FUN!

6. Have fun with Bisectors! ◦This website can reiterate the concept of bisectors. ◦‘fun’‘fun’