**Multiple Choice Questions**

**73**. Solid shapes are of

- (A) Two dimensions
- (B) Three dimensions
- (C) One dimension
- (D) Four dimensions

**72**. The corners of a solid shape are called its

- (A) Faces
- (B) Edges
- (C) Vertices
- (D) Flat surface

**71**. The line segments/ curves which form the skeleton of the solid shapes are known as its

- (A) Faces
- (B) Edges
- (C) Vertices
- (D) Flat surface

**70**. The flat surfaces of a solid shape are called its

- (A) Faces
- (B) Edges
- (C) Vertices
- (D) Flat surface

**69**. The skeleton outline of a solid that can be folded to make the solid is known as

- (A) Faces
- (B) Edges
- (C) Vertices
- (D) Net

**68**. A prism is a polyhedron whose lateral faces are

- (A) Circles
- (B) Triangles
- (C) Parallelograms
- (D) Rhombuses or Rhombi

**67**. A pyramid is a polyhedron whose lateral faces are

- (A) Rectangles
- (B) Triangles
- (C) Parallelograms
- (D) Rhombuses or Rhombi

**66**. In a regular polyhedron, how many faces meet at each vertex?

- (A) Number of faces > number of vertices
- (B) Number of faces = number of vertices
- (C) Number of faces < number of vertices
- (D) None of these

**65**. With usual notation, Euler’s formula for any polyhedron is

- (A)
*F*+*V*+*E*= 2 - (B)
*F*–*V*+*E*= 2 - (C)
*F*+*V*–*E*= 2 - (D)
*F*–*V*–*E*= 2

**64**. A polyhedron is regular if

- (A) its faces are congruent regular polygons and the same number of faces meet at each vertex
- (B) its faces are congruent regular polygons
- (C) the same number of faces meet at each vertex
- (D) None of these

**63**. How many edges are there in a pentagonal prism?

- (A) 16
- (B) 15
- (C) 18
- (D) 12

**62**. How many faces are there in a pentagonal prism?

- (A) 6
- (B) 7
- (C) 8
- (D) 12

**61**. If a pyramid has a hexagonal base, then the number of vertices is

- (A) 6
- (B) 7
- (C) 8
- (D) 12

**60**. Which of the following will not form a polyhedron?

- (A) 3 triangles
- (B) 2 triangles and 3 parallelogram
- (C) 8 triangles
- (D) 1 pentagon and 5 triangles

**59**. Which of the following is a regular polyhedron?

- (A) Cuboid
- (B) Triangular prism
- (C) Cube
- (D) Square prism

**58**. Which of the following is a two Dimensional figure?

- (A) Rectangle
- (B) Rectangular Prism
- (C) Square Pyramid
- (D) Square Prism