57. Which of the following can be the base of a pyramid?
- (A) Line segment
- (B) Circle
- (C) Octagon
- (D) Oval
56. Which of the following 3D shapes does not have a vertex?
- (A) Pyramid
- (B) Prism
- (C) Cone
- (D) Sphere
55. Solid having only line segments as its edges is a
- (A) Polyhedron
- (B) Cone
- (C) Cylinder
- (D) Polygon
54. We have 4 congruent equilateral triangles. What do we need more to make a pyramid?
- (A) An equilateral triangle.
- (B) A square with same side length as of triangle.
- (C) 2 equilateral triangles with side length same as triangle.
- (D) 2 squares with side length same as triangle.
53. Lateral faces of a prism are
- (A) Rectangles
- (B) Parallelograms
- (C) Squares
- (D) Rhombus
52. Lateral faces of a right prism are
- (A) Rectangles
- (B) Parallelograms
- (C) Squares
- (D) Rhombus
51. Which of the following polyhedron does not contain triangles in their nets?
- (A) Tetrahedron
- (B) Octahedron
- (C) Icosahedron
- (D) Dodecahedron
50. Which of the following polyhedron contain pentagons in their nets?
- (A) Tetrahedron
- (B) Octahedron
- (C) Icosahedron
- (D) Dodecahedron
49. Square prism is also called a
- (A) Only cube
- (B) Only cuboid
- (C) Either cube or cuboid
- (D) Pyramid
48. An example of non–platonic solid is
- (A) octahedron
- (B) dodecahedron
- (C) icosahedron
- (D) cuboid
47. How many faces does an n sided polygon have?
- (A) n
- (B) n + 1
- (C) n – 1
- (D) n2
46. How many diagonals are possible of the following shape?
- (A) 3
- (B) 4
- (C) 8
- (D) 6
45. Identify the shape whose net is given below:
- (A) Regular polyhedron
- (B) Irregular polyhedron
- (C) Hexagon
- (D) Nonagon
44. Which of the following three dimensional figures has the top, side and front as triangles?
- (A) (i)
- (B) (ii)
- (C) (iii)
- (D) (iv)