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Question

Cube is an example of
  1. concave polyhedron
  2. non-convex polyhedron
  3. convex polyhedron
  4. square

A
non-convex polyhedron
B
square
C
concave polyhedron
D
convex polyhedron
Solution
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Cube is an example of convex polyhedron.
A polyhedron is said to be convex if its surface does not intersect itself.

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