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gecor20
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Centroid
Activity
gecor20
orthocenter
Activity
gecor20
circumcenter
Activity
gecor20
Incenter
Activity
gecor20
Bisecting an Angle
Activity
gecor20
Perpendicular line through a point
Activity
gecor20
Perpendicular bisector
Activity
gecor20
Duplicating an Angle
Activity
gecor20
Duplicating segments
Activity
gecor20
Investigation 2.6
Activity
gecor20
