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Exploring and Classifying Polygons. Polygons. A polygon is a closed figure whose sides are made up of straight line segments that do not cross. Naming Polygons. Classifying Quadrilaterals. Quadrilaterals are four-sided polygons. Trapezoids.
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Polygons A polygon is a closed figure whose sides are made up of straight line segments that do not cross.
Classifying Quadrilaterals Quadrilaterals are four-sided polygons.
Trapezoids Trapezoids are quadrilaterals that have exactly one pair of parallel lines. Isosceles trapezoids have congruent legs (the non-parallel sides)
Parallelograms Parallelograms are quadrilaterals that have two pairs of parallel lines.
There are three special kinds of parallelograms: Rectangle Rhombus Square
RECTANGLE A rectangle is a parallelogram that has four right angles. An equiangular parallelogram
RHOMBUS A rhombus is a parallelogram that has four congruent sides. An equilateral parallelogram
SQUARE A square is a parallelogram that has four right angles and four congruent sides. An equiangular rhombus or An equilateral rectangle or A regular parallelogram
