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Cuboid: The figure given below is a cuboid. Some examples of a cuboid are

• A cuboid has 6 faces, shown below.

8 vertices and 12 edges.

• Its opposite faces are

equal.

Cylinder: The figure given below is a cylinder. Given below are some examples

• A cylinder has 3 faces of cylinders.

(1 curved and 2 plane)

and 2 edges.

• Its opposite faces are

equal.

Cone: The figure given below is a cone. Given below are some examples

• A cone has 2 faces (one of cones.

plane and the other

curved).

• It has 1 vertex and 1 edge.

Sphere: The figure given below is a sphere. Some spherical objects are

• A sphere has one curved shown below.

face.

• It does not have any edge

or vertex.

Think and Answer
Name the objects which have:
1. no corners 2. 1 corner 3. 2 edges 4. 6 faces

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