How many quadrilaterals are there?


A quadrilateral is a four-sided polygon. There are many different possible shapes and variations a quadrilateral could take, but there are six main types according to the BBC.

A quadrilateral with four sides that are equal in length and corners with 90 degree angles is a square. A rectangle has two sets of opposite sides with equal lengths and corners of 90 degrees. A rhombus has all sides of equal length, but the corners may not necessarily measure 90 degrees. A parallelogram has opposite sides of equal lengths, but the corners do not necessarily measure 90 degrees. A trapezoid has only one pair of parallel sides. Finally, a kite has two pairs of sides that are of equal length and one pair of diagonally opposite angles that are equal.

Explore this Topic
A quadrilateral ALWAYS has 360 degrees. A quadrilateral, or square, is made up of four right angles, 90 degrees, hence the fact that it is always 360. ...
There are four angles in a quadrilateral. All the angles are right angles and the sum of all the angles equal up to 360 degrees. A square and a rectangle are quadrilaterals ...
By its very definition, a quadrilateral is merely a shape with four sides and four vertices or corners. The prefix "quad-" simply means "four" ...
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