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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