A parallelogram or trapezoid.No!A parallelogram or a trapezoid are polygons (2-dimensional). A polyhedron, or 3-dimensional object, with parallel congruent bases is a prism.A prism. To give it fuller description, an "n-gonal prism" where the "n-gon" refers to the 2-d name of the bases.
2
It is a cylinder
None normally because rotational symmetry is only applicable to 2 dimensional shapes such as polygons.
Any shape that is not a triangle may have 2 parallel sides, although regular polygons only have parallel sides when the number of sides is even. For a quadrilateral, a trapezoid(UK trapezium) has 1 set of parallel sides and a parallelogram (either a rhombus, rectangle, or square) has 2 sets of parallel sides.
yes
A cylinder is one of them
There are several cases: any 3 dimensional or more object. Since a polygon is defined as being confined to a single plane, any shape that violates the plane is not a polygon but may still have parallel bases. For cases in only 2 dimensions: Any object that has curves in addition to the parallel bases. A polygon's definition includes only straight sides. Finally, unclosed shapes can have 2 parallel bases with out being polygons even if in a single plane and made up of only straight line sides. A polygon must be closed.
How about a cylinder or a cuboid
If, by parellel you mean parallel, the answer is a prism.
A square or rectangle are the only regular polygons, but many other shapes have two right angles and two parallel lines.
Polygons are a special type of 2-dimensional shapes.
Polygons and 2 dimensional shapes
It is a prism with non-polygonal bases. The bases simply be two identically shaped "blobby" shapes.
I have no f*cking idea and i am a f*cking 7th grader.
A parallelogram or trapezoid.No!A parallelogram or a trapezoid are polygons (2-dimensional). A polyhedron, or 3-dimensional object, with parallel congruent bases is a prism.A prism. To give it fuller description, an "n-gonal prism" where the "n-gon" refers to the 2-d name of the bases.
2 dimensional shapes are 2D shapes and polygons are plain shapes with no curves. So some 2D polygons would be squares , rectangle and many more . A circle would not be a 2D polygon.