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#5 Perpendicular Bisector and Midpoint

a. Create a circle with radius length AB. b. Place the center of the circle at A. c. Create a circle congruent to the first. d. Place the center of this circle at B. e. Label the intersections of these circles as C and D. f. Create segment CD that is perpendicular to and bisects segment AB. g. Change the color/thickness of your perpendicular bisector. h. Show point M where the two segments intersect. i. Use the angle tool to verify that the segments are perpendicular. j. Use the distance tool to verify that M is the midpoint of segment AB.

Because M is the midpoint of segment AB, it must be centered between these endpoints. Why does the segment connecting C and D pass through the midpoint?