# Locus Problem (3)

In the applet below,

**of the circle shown.***O*is the center**Point***D*is a point that lies ON this circle.**Point**the circle. (You can move it anywhere you'd like). The*A*is a point that ALWAYS LIES OUTSIDE**pink line**is the**perpendicular bisector**of the segment with endpoints*A*and*D*. Drag**point**around the circle a few times. What do you see? Describe in detail! Feel free to alter the locations of*D**and***A****the gray point (radius changer)***.*Then clear the trace and drag**point**around again. Why does this occur?*D*Please go to the Locus Construction (3) Task and begin!

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