no
A trapezoid can be a parallelogram.
No, but it is always a parallelogram.
A holy rectangle.
yes
Yes - opposite sides of a square are parallel.
The area of a parallelogram: base times perpendicular height
The area of a parallelogram is length times perpendicular height
No, not every trapezoid is an isosceles trapezoid.
The altitude of a trapezoid bisects the bases of the trapezoid.
Same as for a rectangle: base x height. However, the height must be measured perpendicular to the base.
All the names to classify a trapezoid are a trapezoid and a quadrilateral.
A trapezoid is a polygon. Therefore, a trapezoid has no height