Question

(c) Which of the following shape is not a polyhedron?
(i) Cube
(ii) Cylinder
(iii) Cuboid
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Answer 1

Answer:

Cylinder.................................

Answer 2

Answer:

Option 2: Cylinder

Among the given options, the one which is not a polyhedron is a cylinder.  

Knowledge Bytes

→ Polyhedrons

Those 3D objects that have plane faces are called polyhedrons. [In higher standards, a typical polyhedron will have more than 6 faces].

For example, cubes, cuboids.

→ Non – polyhedrons

Those 3D objects that do not have plane faces and only curved faces are called non-polyhedrons.

For example, cylinders, spheres and cones.

→ Cylinder

A cylinder is a 3D object with 3 curved faces.

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