To determine whether all quadrilaterals are polygons, we need to understand the definitions of both quadrilaterals and polygons.
1. Definition of Polygons:
- A polygon is a closed plane figure with at least three straight sides and angles. Examples include triangles (3 sides), quadrilaterals (4 sides), pentagons (5 sides), and so on.
2. Definition of Quadrilaterals:
- A quadrilateral is a closed plane figure with exactly four straight sides. Examples of quadrilaterals include squares, rectangles, trapezoids, and parallelograms.
A key point is that polygons can have any number of sides equal to or greater than three. Since quadrilaterals do have four sides, which fits within the definition of a polygon (which requires at least three sides), all quadrilaterals can be classified as polygons.
So, the correct answer to the statement "All quadrilaterals are polygons" is:
0 A. True
