Circle, a set of points that is equidistant from the center, polygon, a closed plane figure that is formed by line segment, pentagon, a five-sided polygon, Square, have four equal sides and equal right angles., rectangle, have two pairs of opposite sides are parallel and congruent., diameter, longest chord, chord, a part of a circle that is the endpoints are on the circle., radius, one-half of the diameter, triangle, a three sided polygon, point, has no length, width and thickness

Basic Concepts in Geometry

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