Answer with explanation:
→A quadrilateral is a four sided convex polygon . The sum of interior angles of any Quadrilateral is 360 degree.
→As,Square is also a four sided polygon,having measure of each interior angle is 90 degree, so sum of all the interior angles gives 360 degree.
So,→Square satisfies all the properties of Quadrilateral.
So, Yes a square is always a quadrilateral .
Always
