Q:

# What are the types of quadrilaterals?

A:

### Quick Answer

A quadrilateral is a four-sided shape, such as a rectangle or parallelogram. In order for a shape to be considered a quadrilateral, it has to have four straight sides and be two-dimensional.

Continue Reading

## Keep Learning

### Full Answer

If all of the interior angles of a quadrilateral are added together, they are equal to 360 degrees. Some quadrilaterals require specific qualifications, such as all sides have to be equal in length or the sides have to be parallel. For instance, a rhombus has two sets of parallel sides that are equal in length.

Quadrilaterals can be complex. Complex quadrilaterals, or intersecting quadrilaterals, cross over at some point. A bow tie shape is a good example of a complex quadrilateral.

Quadrilaterals can be inclusive. This means that a shape can fit more than one definition. For instance, a square can also be considered a rectangle. A rectangle has to be four-sided, and every angle must equal 90 degrees. The square also fits this definition. However, not all rectangles are squares. A square must have four sides equal in length.

Quadrilaterals are also known as quadrangles and tetragons. The term “quadrangle” references the four angles of quadrilaterals. "Tetragon" refers to the fact that the quadrilateral is a four-sided polygon.

Learn more about Geometry
Sources:

## Related Questions

• A: A parallelogram is a figure with four straight sides whose opposite sides are parallel and equal in length and whose opposite angles are equal. A trapezoid... Full Answer >
Filed Under:
• A: The perimeter of a parallelogram, as for any polygon, is the sum of the lengths of its sides. The opposite sides of a parallelogram are parallel and have t... Full Answer >
Filed Under:
• A: To calculate the area of a parallelogram from vectors, find the cross product of the sides and vectors. The area equals the length of the cross product of ... Full Answer >
Filed Under:
• A: The number of lines of symmetry of a parallelogram depends on the type of parallelogram. A non-special parallelogram does not have any lines of symmetry. T... Full Answer >
Filed Under:
PEOPLE SEARCH FOR