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Non-Polyhedrons

Which of the ...

Question

Which of the following three-dimensional shapes are not polyhedrons?

A

Cone

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B

Cylinder

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C

Pyramid

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D

Sphere

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Solution

The correct options are
A
Cone

B

Cylinder

D
Sphere

Cone, cylinder and sphere are not polyhedrons as they have sides which are not polygons.
Pyramid is a polyhedron as it has faces which are polygons.

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