WHAT IS A POLYGON? A polygon is a closed figure made by joining
line segments, where each line segment intersects exactly two
others. The following are examples of polygons: A polygon is a
closed figure made by joining line segments, where each line
segment intersects exactly two others. The following are examples
of polygons:
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WHAT IS NOT A POLYGON? The figure below is not a polygon since
it is not a closed figure: The figure below is not a polygon since
it is not made of line segments:
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Naming Polygons Polygons are named starting at one vertex, then
continuing clockwise or counter-clockwise. This polygon can be
named LKBFJM, or LMJFBK starting at point L. (Polygon Laura Kristie
Beatrice Furiosi Jane Moeller) LK B F J M
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Diagonals of Polygons Diagonals are the segments that connect
two nonconsecutive vertices of the polygon. LV and EO are diagonals
of rectangle LOVE. LO VE
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QUADTILATERALS QUADRILATERALS: four-sided polygons The
following are examples of quadrilaterals:
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TYPES OF QUADRILATERALS PARALLELOGRAM- a quadrilateral in which
both pairs of opposite sides are parallel or congruent. KF LM KF
LM
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TYPES OF QUADRILATERALS RECTANGLE- a parallelogram in which at
least one angle is a right angle HA N K
