#4 Angle Bisector

a. Create a circle with radius AB.[br]b. Place the circle at B.[br]c. Label the intersection of the circle and segment BC as D.[br]d. Make a copy of the first circle by clicking somewhere on its edge (not at a point shown).[br]e. Place this circle at D.[br]f. Create another copy of the circle and place it at A.[br]g. Show point E where the two circles intersect.[br]h. Create the [b]angle bisector[/b] of [math]\angle ABC[/math] by drawing a ray from B through E.[br]i. Change the the color/thickness of the bisector.[br]j. Use the angle tool to verify that two congruent angles were formed.
Analysis
Considering an angle bisector must pass through the center of an angle, explain how the steps above led to finding a central point, E, to draw through.
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