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What property is true of all parallelograms?
They are quadrilaterals; opposite sides are parallel.
What is a quadrilateral that does not have 2 pairs of parallel sides?
There are lots of different quadrilaterals that do not have two pairs of parallel sides: a kite, arrowhead, trapezium, and a shape which has no specific name.
Two quadrilaterals that have two pairs of parallel sides each In addition all four of the sides are congruent in both shapes?
The two quadrilaterals are squares.
Contrast rectangle and rhombus?
Both are quadrilaterals. A rectangle has 4 right angles, a rhombus has 2 pairs of equal angles (at opposite corners) A rhombus has 4 equal sides, a rectangle has 2 pairs of equal sides. The opposite sides in both shapes are parallel to each other.
What shape has opposite sides that are parallel?
Any regular polygon with an even number of sides will have opposite sides that are parallel. For quadrilaterals (4-sided shapes), a trapezoid has one set of opposite sides and a parallelogram (rectangle, square, rhombus) has both sets of opposite sides parallel.
