No, not all polygons are quadrilaterals. A polygon is a closed figure with three or more sides, whereas a quadrilateral specifically refers to a polygon that has exactly four sides.
Polygons can be classified into different types based on the number of sides they have. For instance, a triangle has three sides, a pentagon has five sides, a hexagon has six sides, and so on. All these shapes fall under the broader category of polygons but are not quadrilaterals.
In summary, while it’s true that all quadrilaterals are polygons, not all polygons are quadrilaterals. The key distinction lies in the number of sides; quadrilaterals are limited to four sides.