A quadrilateral, determining by the term "quad" which means 4, a quadrilateral is a 4 sided shape. To know if a shape is a quadrilateral all that you have to do is count the number of sides it has because a quadrilateral is a flat shape. There are many types of quadrilaterals and here are some:
So there are many more quadrilaterals out there it's just up to you to classify them.Now try some of these and make sure to watch the video on YouTube.
Sheet 1 What are Quadrilaterals