there are about a million quadrilaterals (this was done by Rosey Floopingager I know its a weird name but my parents gave it to me and I enjoy it!!)
A quadrilateral has 4 sides
A quadrilateral has 2 diagonals.
A Quadrilateral has two diagonals. IF the quadrilateral is a rectangle, then the two diagonals are equal in length.
There are 4 interior angles in a quadrilateral
A quadrilateral has 4 line segments
4
A quadrilateral has 4 sides.
http://en.wikipedia.org/wiki/Quadrilateral It's 4.
A quadrilateral triangle is an impossible shape. A quadrilateral has four straight sides while a triangle has three.
You can divide a quadrilateral up into as many triangles as you want, but at least two.
A regular quadrilateral has 4 lines of symetry
A quadrilateral has 4 sides and 1 face which is its surface area.