Quadrilateral is the name fr a geometric figure with 4 sides.
A figure with 4 sides.
A figure with 4 equal sides and 4 equal angles is a square :)
A geometric shape with 4 sides and 4 vertices is a 4-sided figure, a quadrilateral.
If it has only 4 sides in total, then it's a parallelogram.I think any figure with more than 4 sides can have two sets of parallel sides.