There are about 6 "basic" types but there could be more
A quadrilateral is a closed shape and a type of polygon that has four sides, four vertices and four angles. It is formed by joining four non-collinear points. The sum of interior angles of quadrilaterals is always equal to 360 degrees.
Quadrilateral Types:
- Trapezium
- Parallelogram
- Rectangle
- Rhombus
- Square
- Kite