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Yes all rectangles are parallelogram but all parallelogram cannot be rectangles.

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Q: Are rectangles parallelogram because their sides are parallel?
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How many parallel sides does a parallelogram have?

in geometry i learned a parallelogram has only 2 pairs of parallel sides each pair of opposite sides is parallel


Is every rectangle is a parallelogram?

No. A rectangle is a parallelogram because all of its sides are parallel, but a parallelogram is not a rectangle because it does not have all right angles. It is a true statement to say that all rectangles are parallelograms. However, the statement that all parallelograms are rectangles is false. A parallelogram is a shape where its opposite sides are parallel to each other, including squares, hexagons, octagons, etc.


Are all rectangles parallelogram?

Yes. Parallelograms have two pairs of opposite sides that are parallel. Rectangles also have two pairs of opposite sides that are parallel, which makes them parallelograms.


Are all rectangles parallelogram's?

Yes. Parallelograms have two pairs of opposite sides that are parallel. Rectangles also have two pairs of opposite sides that are parallel, which makes them parallelograms.


What is a quadrilateral with oppostite sides that are congruent and parallel called?

That is called a parallelogram. Parallelogram includes squares, rectangles, and rhomboids.


What quadrilateral has two pairs of parallel sides?

It's a parallelogram. Squares and rectangles are parallelograms.


Is it true that some parallelogams are rectangles?

Yup; as long as the opposing sides are parallel -- it can be a parallelogram. Technically, a rectangle is a parallelogram too.


What is the definition of an parallelogram?

A parallelogram is tetragon (a polygon with four sides) that has two pair of parallel sides. Parallelograms include rectangles, oblongs, squares, and rhomboids.


How do you draw a parallelagram?

A parallelogram is a figure with parallel sides. For instance, a square is a parallelogram because its sides are parallel.


Why is a rectangle also a parallelogram?

Rectangles form a subset of parallelograms. It has four sides comprising two pairs of parallel sides.


How many pairs of parallel sides does a parallelogram have?

A parallelogram has 2 sets of parallel sides. The opposite sides are equal in length and opposite angles are equal. Examples of parallelograms are squares, rectangles and rhombuses. You can find the perimeter of a parallelogram by doubling the base+side length.


Why are squares parallelogram?

Squares are parallelograms because they carry the traits of a parallelogram. For a shape to be a parallelogram, both pairs of opposite sides must be parallel. This is true for a square, so it is a parallelogram. Some other examples are rectangles and rhombuses.