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What is a quadrilateral parallelogram?
A quadrilateral is a polygon with four sides. A parallelogram is a quadrilateral in which the opposite sides are parallel.
Where are the parallel sides of a polygon?
The parallel sides of a polygon are sides that are segments of parallel lines. A polygon need not have any parallel lines. A triangle, for example, is a polygon that cannot have parallel lines.
What is a four-sided polygon with opposite sides parallel and congruent and four right angles?
A rectangle is a quadrilateral with opposite sides parallel and congruent and four right angles. If all four sides are congruent, it is a square.
Is a Trapezoid a polygon?
Yes, it has sides that are straight line segments. Exactly one pair of opposite sides is parallel. Polygons do not have curved sides.
What polygons are parallelograms?
Every 4-sided polygon in which the opposite sides are parallel is a parallelogram. Opposite sides are equal too, but it's not necessary to make that an explicit requirement, because if both pairs of opposite sides are parallel, then they also wind up being equal.
