yes
NO!!!! Parallelogram has two pairs of opposite sides which are parallel. These pairs of opposite sides are the same length. Trapezium ; has one pair of opposite sides which are parallel. These parallel sides are NOT the same length .
false
A trapezoid is not a parallelogram. A trapezoid is a quadrilateral with at least one pair of parallel sides, while a parallelogram is a quadrilateral with two pairs of parallel sides. These two shapes have different properties and cannot be considered the same.
The difference between a trapezoid and a parallelogram is very simple: A trapezoid has exactly one pair of parallel sides and a parallelogram has exactly two pairs of parallel sides.
Well that's easy. A parallelogram has two pairs of OPPOSITE SIDES. A trapezoid only has one pair of parallel sides.
irregular trapezoid
A trapezoid has one pair of parallel sides, a rhombus has two.A trapezoid can have at most three sides of equal length, though it need not have any. All four sides of a rhombus must be the same length.
They are both types of quadrilaterals (polygons with four sides A rhombus has two pairs of parallel sides, all of which are congruent to each other. (have the same length) A trapezoid has exactly one pair of parallel sides.
Isosceles trapezoid.
First of all, a trapezoid is not always a parallelogram. Did you mean the reverse: "Why is a parallelogram also a trapezoid"? If so, this depends upon your definition of a trapezoid and parallelogram. Some people define a trapezoid as a quadrilateral with exactly one pair of parallel sides, and a parallelogram as a quadrilateral with exactly two pairs of parallel sides. According to these definitions, a trapezoid can *NEVER* be a parallelogram, so your question is meaningless. However, others might define a trapezoid as a quadrilateral with one *or two* pairs of parallel sides. If you use this definition, then all parallelograms are also trapezoids, much in the same manner that all squares are also rectangles.
A trapezoid.
The shape you are describing is a trapezoid. A trapezoid has two pairs of parallel sides, with one pair longer than the other. It can have two acute angles and two obtuse angles, depending on the lengths of the sides. The acute angles are typically smaller than 90 degrees, while the obtuse angles are larger than 90 degrees.