CHM247H1 Study Guide - Centroid, Circumscribed Circle, Incenter

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23 Dec 2012
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Midpoint: the point in a line segment that divides the line segment into two equal points. Median a line that joins a vertex of a triangle to the midpoint of the opposite side. Centroid the point where the three medians of a triangle intersect. Altitude the line segment representing the height of a polygon, drawn from a vertex of the polygon perpendicular to the opposite side. Orthocentre the point where the three altitudes of a triangle intersect. Perpendicular bisector a line that is perpendicular to a line segment and passes through the midpoint of a line segment. Circumcentre the centre of the circle that passes through all three vertices of a triangle. Angle bisector a line separating an angle into two equal parts. Incentre the centre of the incircle of a polygon. The incircle is the circle inside a polygon that touches every side.