yes
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.
Well that's easy. A parallelogram has two pairs of OPPOSITE SIDES. A trapezoid only has one pair of parallel sides.
irregular trapezoid
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.
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.
Isosceles trapezoid.
A 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.
If the two sides which are not parallel have equal lengths, then the trapezoid is called an isosceles trapezoid (standard trapezoid has unequal sides). The base angles in an isosceles trapezoid are equal in measurement, also I know that a trapezoid with two nonparallel sides the same length is called an isosceles trapezoid.
a trpazoid actualy has at least 1 pair of parallel sides, a rectangle has 2 pairs os parallel sides
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.