You can split any rectangle up into three trapezoids but you can not combine just any three trapezoids to make a rectangle.
No, a trapezoid could not have three right angles. If it did, it would be a rectangle, as the fourth angle would need to be 90 degrees as well. A rectangle is not a trapezoid.
a rectangle a square and a trapezoid
Rectangle and Isosceles Trapezoid
A rectangle, a square, and an isosceles trapezoid.
Isosceles trapezoid and rectangle
A square is a rectangle (whose sides are all equal), or a rhombus (whose angles are all equal).
A rectangle that is not a square. Or a trapezoid.
No because otherwise it would be a rectangle
A trapezoid and a rectangle are both polygons.
No, because then it would be a rectangle.
A quadrilateral. It may be a rectangle, parallelogram, trapezoid, or an irregular quadrilateral.
No, every trapezoid is not a rectangle. There is no overlap between rectangles and trapezoids -- that is, no trapezoid is a rectangle. They are both four-sided quadrilaterals