No, they cannot be. All parallelograms must have two pairs of parallel sides whereas a trapezium can have only one such pair.
i think 2
Trapezoid.
Some of them do.
They both have four sides. This is the only complete similarity between the rhombus and the trapezoid.
No, not every trapezoid is an isosceles trapezoid.
A trapezoid need not have any equal sides, but it may have some equal sides. The only requirements to be a trapezoid, is that it has 4 sides, and at least one pair of parallel sides.
The altitude of a trapezoid bisects the bases of the trapezoid.
A trapezoid is not defined as a perpendicular shape; rather, it is a type of quadrilateral with at least one pair of parallel sides. The angles within a trapezoid can vary, and while some trapezoids may have right angles, this is not a requirement for the shape. Therefore, a trapezoid itself is not inherently perpendicular.
All the names to classify a trapezoid are a trapezoid and a quadrilateral.
A trapezoid in some parts of the world.
A trapezoid is a polygon. Therefore, a trapezoid has no height
A trapezoid with congruent diagonals is an isosceles trapezoid.