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Is a polygon 3 dimensional?
No. A polygon is a 2-dimensional figure. A polyhedron is 3-dimensional.
Which 3 dimensional figure does NOT have a curved surface?
A cuboid and a pyramid for examples.
Is a triangle a polyhedron?
NO!!! A triangle is a 2-dimensional shape of three sides; archaically a 'trigon'. A polyhedron is a 3-dimensional solid of many sides.
A three dimensional figure with two parallel and congruent bases connected by a curved lateral surface?
cylinder
A polyhedron is a two-dimensional figure bounded by polygons?
A polyhedron is a three-dimensional figure formed by flat surfaces that are bounded by polygons joining along their sides (the faces of the polyhedron).A circle is not a polygon, but we can say that a circle is the limit of a regular polygon with n sides. It means that if n becomes larger and larger, the polygon shape approaches to a circle. A circle is a two dimensional figure as a polygon is, but a three dimensional figure whose base(s) is/are a circle cannot be called a polyhedron.
