# 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

## 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 general category of four-sided shapes.
Aimie Carlson
Jan 31, 2024

#### 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

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

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

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

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

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

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

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

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

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