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Medians and Centroid A median of a triangle is a line segment that is drawn from the _________ to the ___________ of the opposite side. A centroid is the point where all ______ of the ________ intersect.

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Angle Bisector and Incenter An angle bisector in a triangle is drawn from the ________ to the opposite side (not necessarily the middle) so that the _______ is cut in _______. The incenter is the point where all _____ of the _________________ intersect.

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Perpendicular Bisector and Circumcenter A perpendicular bisector of a triangle is a segment drawn from the _________ of the side and is ______________ to that side. A circumcenter – is the point where all 3 _________________ ____________

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Label each segment as a median, angle bisector, or perpendicular bisector

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Classwork Construct the centroid, circumcenter, and incenter for each triangle. Use centimeters when measuring and LABELING the side lengths LABEL how many degrees each angle of the triangle is.

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Major and Minor Arc Review A ___________ has more than 180 o A _____________ has less than 180 o A ____________ is named with 3 letters A______________ is named with 2 letters. Arcs are measured by their _____________

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Label each major and minor arc and find its measure. 110 o 300 o 155 o A B J G E F C H K

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