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Parellelogram vs. Quadrilateral: What's the Difference?

Edited by Sumera Saeed || By Sawaira Riaz || Published on January 31, 2024
A parallelogram is a specific type of quadrilateral with opposite sides parallel and equal, while a quadrilateral is any four-sided polygon.

Key Differences

A parallelogram is a four-sided shape where opposite sides are parallel and of equal length, and opposite angles are equal. A quadrilateral, on the other hand, is a more general term that refers to any four-sided polygon, regardless of the equality or parallelism of its sides.
Sawaira Riaz
Jan 31, 2024
In a parallelogram, the diagonals bisect each other, but are not necessarily equal. Every quadrilateral has two diagonals, but the properties of these diagonals vary greatly among different types of quadrilaterals.
Sawaira Riaz
Jan 31, 2024
Another key feature of a parallelogram is that the sum of the interior angles on each side is 180 degrees, a property shared with other quadrilaterals. However, in general quadrilaterals, the angles can vary widely as long as they sum up to 360 degrees.
Sumera Saeed
Jan 31, 2024
A parallelogram has symmetry across its diagonals, meaning each half is a mirror image of the other. This is not a requirement for a quadrilateral, which can have an asymmetrical shape, like a trapezoid.
Harlon Moss
Jan 31, 2024
The classification of a parallelogram is more specific than a quadrilateral; all parallelograms are quadrilaterals, but not all quadrilaterals are parallelograms. For example, squares and rectangles are parallelograms, but kites and trapezoids are quadrilaterals that are not parallelograms.
Harlon Moss
Jan 31, 2024
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Comparison Chart

Definition

A quadrilateral with parallel opposite sides and equal opposite angles.
Any four-sided polygon.
Sawaira Riaz
Jan 31, 2024

Sides

Opposite sides are equal and parallel.
Sides may or may not be equal or parallel.
Sumera Saeed
Jan 31, 2024

Angles

Opposite angles are equal.
Interior angles sum to 360 degrees.
Sawaira Riaz
Jan 31, 2024

Diagonals

Bisect each other but not necessarily equal.
Properties vary among different types.
Harlon Moss
Jan 31, 2024

Specificity

A specific type of quadrilateral.
A general category of four-sided shapes.
Aimie Carlson
Jan 31, 2024
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Parellelogram and Quadrilateral Definitions

Parellelogram

A polygon where opposite angles are equal.
In this parallelogram, each pair of opposite angles measures 60 and 120 degrees.
Sawaira Riaz
Dec 15, 2023

Quadrilateral

A shape with four edges and four vertices.
This quadrilateral has two acute and two obtuse angles.
Janet White
Dec 15, 2023

Parellelogram

A quadrilateral with diagonals that bisect each other.
The diagonals of this parallelogram bisect each other at right angles.
Sawaira Riaz
Dec 15, 2023

Quadrilateral

A polygon that can be simple or complex.
The quadrilateral we're studying has an irregular shape.
Aimie Carlson
Dec 15, 2023

Parellelogram

A specific type of quadrilateral with two pairs of parallel sides.
This parallelogram has two pairs of parallel sides, each pair being equal in length.
Sawaira Riaz
Dec 15, 2023

Quadrilateral

A category that includes rectangles, squares, trapezoids, and kites.
Each quadrilateral in this series has unique properties.
Sawaira Riaz
Dec 15, 2023

Parellelogram

A four-sided shape with opposite sides parallel and equal.
The area of a parallelogram is calculated by base times height.
Sawaira Riaz
Dec 15, 2023

Quadrilateral

Any four-sided polygon.
A rectangle is an example of a quadrilateral.
Sumera Saeed
Dec 15, 2023

Parellelogram

A shape used in geometry with symmetrical properties.
The parallelogram in the diagram illustrates rotational symmetry.
Aimie Carlson
Dec 15, 2023

Quadrilateral

A term in geometry encompassing various four-sided shapes.
Squares and trapezoids are both types of quadrilaterals.
Sawaira Riaz
Dec 15, 2023

Quadrilateral

A polygon having four sides.
Sawaira Riaz
Dec 15, 2023

Quadrilateral

Having four sides.
Sawaira Riaz
Dec 15, 2023

FAQs

Can a quadrilateral have unequal sides?

Yes, a quadrilateral can have sides of different lengths.
Janet White
Jan 31, 2024

Do parallelograms always have equal angles?

Yes, opposite angles in a parallelogram are always equal.
Sawaira Riaz
Jan 31, 2024

Are the diagonals of a parallelogram always equal?

No, the diagonals of a parallelogram bisect each other but are not necessarily equal.
Janet White
Jan 31, 2024

Can a quadrilateral be a complex shape?

Yes, quadrilaterals can be simple or complex in shape.
Janet White
Jan 31, 2024

What is a quadrilateral?

A quadrilateral is any four-sided polygon.
Sumera Saeed
Jan 31, 2024

What defines a parallelogram?

A parallelogram is defined by parallel and equal opposite sides.
Sawaira Riaz
Jan 31, 2024

Can a quadrilateral be irregular?

Yes, quadrilaterals can be regular or irregular.
Aimie Carlson
Jan 31, 2024

Are all parallelograms quadrilaterals?

Yes, all parallelograms are a subset of quadrilaterals.
Sawaira Riaz
Jan 31, 2024

Do all parallelograms have a line of symmetry?

Yes, parallelograms have lines of symmetry across their diagonals.
Aimie Carlson
Jan 31, 2024

What's the area formula for a parallelogram?

The area of a parallelogram is base times height.
Harlon Moss
Jan 31, 2024

Do quadrilaterals have a specific angle sum?

Yes, the sum of angles in any quadrilateral is 360 degrees.
Janet White
Jan 31, 2024

Is a rectangle a type of parallelogram?

Yes, a rectangle is a special type of parallelogram.
Aimie Carlson
Jan 31, 2024

Do parallelograms have right angles?

Parallelograms can have right angles, as in rectangles.
Sawaira Riaz
Jan 31, 2024

Is a square considered a parallelogram?

Yes, a square is a specific type of parallelogram.
Janet White
Jan 31, 2024

What types of quadrilaterals exist?

There are many, including rectangles, squares, trapezoids, and kites.
Sawaira Riaz
Jan 31, 2024

Are parallelograms always convex?

Yes, parallelograms are always convex.
Harlon Moss
Jan 31, 2024

Can a quadrilateral be concave?

Yes, quadrilaterals can be concave or convex.
Aimie Carlson
Jan 31, 2024

How are the sides of a parallelogram related?

Opposite sides of a parallelogram are parallel and equal in length.
Sawaira Riaz
Jan 31, 2024

Do all quadrilaterals have parallel sides?

No, not all quadrilaterals have parallel sides.
Harlon Moss
Jan 31, 2024

Are all quadrilaterals symmetrical?

Not all quadrilaterals are symmetrical; it depends on their specific shape.
Sawaira Riaz
Jan 31, 2024
About Author
Written by
Sawaira Riaz
Sawaira is a dedicated content editor at difference.wiki, where she meticulously refines articles to ensure clarity and accuracy. With a keen eye for detail, she upholds the site's commitment to delivering insightful and precise content.
Edited by
Sumera Saeed
Sumera is an experienced content writer and editor with a niche in comparative analysis. At Diffeence Wiki, she crafts clear and unbiased comparisons to guide readers in making informed decisions. With a dedication to thorough research and quality, Sumera's work stands out in the digital realm. Off the clock, she enjoys reading and exploring diverse cultures.

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