Question

What properties does a square have in common with a quadrilateral?

Answer 1

Hey there 

Quadrilateral "four sided shape"
A Quadrilateral has four-sides and it is 2-dimensional shape 
Squares and quadrilaterals have 
4 sides 
4 vertices 

Hope this helps 
 

Answer 2

A quadrilateral has four sides, because 'quad' means four. Also, a square has 4 sides. Therefore, the answer is that they both contain 4 sides.