No
Trapezoid
if a figure is a square, then it is a regular quadrilateral
Yes, a trapezoid is a quadrilateral.
It is true that every trapezoid is a quadrilateral
No
No because a square, a rectangle, a rhombus and a kite are other types of 4 sided quadrlaterals
Yes, trapezoid
rectangle, rhombus, parallelogram, trapezoid, isosceles trapezoid, kite ... etc
That is impossible as a square IS quadrilateral
Yes, providing it has 4 sides.
Yes
Trapezoid
if a figure is a square, then it is a regular quadrilateral
Yes, a trapezoid is a quadrilateral.
No, not every quadrilateral is a trapezoid, although a trapezoid is also a quadrilateral because it has four sides.
No. A quadrilateral is any four-sided figure. A trapezoid is one example of a quadrilateral.