How are pyramids and cones different than prisms and cylinders?

A prism is a polyhedron which has two congruent bases and a pyramid has only one base

A cylinder has two circular bases  such that it's sides are curved not flat.

A cone has only one circular base with one vertex.

Step-by-step explanation:

A prism  and a prism are three dimensional figures with sides and faces as polygons.

A prism is a polyhedron which has two congruent bases and a pyramid has only one base.

The base is not of the form of circle or oval.The sides and bases are always polygons.

The base can be square , triangle , rectangle etc.

Cone and cylinder are also three dimensional figures with some differences.

A cylinder has two circular bases  such that it's sides are curved not flat.

A cone has only one circular base with one vertex.

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step-by-step explanation:

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.