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That's a rhombus. With an additional constraint on the angles, it's also a square.

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Q: What is a four sided plane figure with opposite sides parallel and all sides equal?
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Related questions

What does parallelogram mean in mats?

A quadrilateral (ie 4-sided plane figure) with opposite sides equal and parallel


What is the shape with four sides and the opposite sides are parallel and not equal?

If both sets of opposite sides are parallel and not equal, the shape cannot be a plane figure. It must be a projection of a parallelogram onto a spherical surface (or similar).


What plane has opposite sides equal and parallel and no angles equal to 90 degrees?

A rhombus or a parallelogram


What is an example of a parallelogram?

A rectangle (opposite sides are parallel which is a parallelogram!)


What is the definition of a parellogram?

A parallelogram is a four-sided plane figure with opposite sides parallel.


Can parallelograms have right angles?

Yes, it can... but does not have to. A parallelogram is a four-sided plane figure with opposite sides parallel. So as long as it has opposite sides that are parallel, it is a parallelogram.


What plane shape has all sides equal and opposite sides parallel?

Square. Square is a quadrilateral and all sides are equal and opposite sides are parallel, the sum of the interior angle measure 3600.


What is parellelogram?

A parallelogram is a four-sided plane rectilinear figure with opposite sides parallel. Hope this helps!


What names is given to a plane figure having equal sides and equal opposite angles?

square or rhombus


In what way is a rectangle similar to a parallelogram?

Every rectangle is a parallelogram. The description of a parallelogram is: -- a figure that lies in a single plane -- it has four sides -- opposite sides are parallel -- opposite sides have equal lengths -- alternate angles are equal Every rectangle satisfies this description.


Can a quadrilateral be a rectangle and a square?

Yes. A quadrilateral is any plane figure bounded by four straight lines. A rectangle is a quadrilateral with each of its vertex angles equal to 90°, opposite sides are parallel and of equal length but the pairs of opposite sides are of different lengths. A square is a rectangle with all its sides equal in length.


What quadrilateral has no equal angles and its opposite sides are parallell?

It is not possible for a quadrilateral in Euclidean plane geometry to have no equal angles and still have its opposite sides parallel.It's possible for a quadrilateral to have no equal angles and two of its sides parallel (opposite ones, obviously; adjacent sides can't possibly be parallel). That would be a trapezoid.