Question

A polyhedron with two polygonal bases parallel to each other is a prism. In optics, the prism is the transparent optical element with flat polished surfaces that refract light. The two polygonal bases are joined by lateral faces. The lateral faces are mostly rectangle. It may be parallelogram in some cases. Triangular Prism: A prism that has 3 rectangular faces and 2 parallel triangular bases, then it is a triangular prism.Where,a – Apothem length of the triangular prismb – Base length of the triangular prismh – Height of the triangular prism

Option 1

Clear selection

What is the ratio of the areas of two bases (triangles)

(i) 1:1

(ii) 1:2

(iii) 2:1

(iv) 2:3

What is the ratio between the base area and total surface area of this prism?

1/2

1/3

2/3

1/4

If the base is a pentagon , then what is the name of the solid?

Square pyramid

Pentagonal pyramid

Pentagonal prism

Square prism

The cube is an example of

(i)triangular pyramid

triangular prism

Square prism

Square pyramid

​

Answer 1

cube is an example of Square prism

If the base is a pentagon , Pentagonal prism is the name of the solid

Step-by-step explanation:

ratio of the areas of two bases (triangles) = 1 : 1

A polyhedron with two polygonal bases parallel to each other is a prism

base is a pentagon

Two pentagon based are joined together by  lateral faces.

Hence solid is Pentagonal prism

cube is an example of Square prism

as base is Square and opposite face are parallel

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Answer 2

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Te ratio of the areas of two bases of triangles are 1:1.