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That is how it is defined: parallelograms have two sides that have congruent adjacent angles, so that the remaining two sides must be parallel and equal in length.
Parallelograms include rectangles (all right angles), squares (all right angles), rhomboids, and rhombi (the latter two have congruent but non-right angles, and a rhombus has 4 equal sides).
What else can I help you with?
How many pairs parallel sides are in a parallelogram?
Two pairs of opposite sides are parallel in a parallelogram
How many parallel sides does a parrallelogram has?
A parallelogram has two pairs of parallel sides.
How many pairs of opposite parallel sides does a parallelogram have?
A parallelogram has two pairs of opposite parallel sides (for a total of four sides).
Does a parallelogram have two pairs of opposite sides parallel?
Yes it does. All the four sides have an opposite. The opposites are parallel so in a parallelogram there are two pairs of parallel sides.
Two pairs of parallel sides?
Parallelogram
How many pairs of parallel sides are in a parallelagram?
A parallelogram has two pairs of opposite parallel sides
What has two pairs of opposite sides parallel?
A Parallelogram has 2 pairs of opposing sides that are parallel.
What shape has two pairs of parralel sides?
A parallelogram has two pairs of parallel sides.
How many ides are parallel in a parallelogram?
If by 'ides' you mean sides, then there are two pairs of parallel sides in a parallelogram.
A quadrangle that has two pairs of parallel sides?
A quadrangle (or quadrilateral) that has two pairs of parallel sides is called a parallelogram.
How many parallel sides does a parrallelogram have?
A parallelogram has two pairs of parallel sides.
Are two pairs of sides parallel in a parallelogram?
Yes, opposite sides are parallel
