Class 8 Maths MCQ – Visualising Solid Shapes

1. Which of the following is NOT a solid shape?

a) Cube
b) Cylinder
c) Triangle
d) Sphere

Answer:

c) Triangle

Explanation:

A triangle is a two-dimensional shape, whereas the others are three-dimensional solid shapes.

2. How many faces does a cube have?

a) 4
b) 6
c) 8
d) 12

Answer:

b) 6

Explanation:

A cube has 6 square faces.

3. Which solid shape has only one curved surface?

a) Cone
b) Cylinder
c) Sphere
d) Cube

Answer:

c) Sphere

Explanation:

A sphere is composed of a single curved surface with no edges or vertices.

4. The point where three edges of a solid shape meet is called a:

a) Face
b) Vertex
c) Edge
d) Base

Answer:

b) Vertex

Explanation:

In solid shapes, a vertex is the point where three or more edges meet.

5. How many vertices does a rectangular prism (cuboid) have?

a) 6
b) 8
c) 4
d) 12

Answer:

b) 8

Explanation:

A rectangular prism or cuboid has 8 vertices.

6. Which of the following shapes has no edges or vertices?

a) Cube
b) Cylinder
c) Cone
d) Sphere

Answer:

d) Sphere

Explanation:

A sphere is a solid shape with a continuous curved surface, without any edges or vertices.

7. A pyramid that has a triangular base is known as:

a) Tetrahedron
b) Triangular pyramid
c) Square pyramid
d) Hexagonal pyramid

Answer:

a) Tetrahedron

Explanation:

A tetrahedron is a pyramid with a triangular base and three triangular faces.

8. Which shape has one curved face and one flat face?

a) Sphere
b) Cone
c) Cube
d) Cylinder

Answer:

b) Cone

Explanation:

A cone has a flat circular base and a curved surface that joins the base to the vertex.

9. What shape is the base of a cylinder?

a) Square
b) Rectangle
c) Triangle
d) Circle

Answer:

d) Circle

Explanation:

A cylinder has two parallel circular bases.

10. How many edges does a cube have?

a) 6
b) 8
c) 12
d) 4

Answer:

c) 12

Explanation:

A cube has 12 edges.

11. Which solid shape has only one vertex?

a) Cone
b) Cylinder
c) Sphere
d) Cube

Answer:

a) Cone

Explanation:

A cone has a single vertex at the pointed end.

12. A prism with a pentagon as its base is called:

a) Pentagonal prism
b) Triangular prism
c) Hexagonal prism
d) Octagonal prism

Answer:

a) Pentagonal prism

Explanation:

A prism named after the shape of its base, so a prism with a pentagonal base is a pentagonal prism.

13. Which of the following shapes has only flat surfaces?

a) Sphere
b) Cylinder
c) Cone
d) Cube

Answer:

d) Cube

Explanation:

A cube is composed of six flat square faces.

14. How many faces does a triangular prism have?

a) 3
b) 4
c) 5
d) 6

Answer:

c) 5

Explanation:

A triangular prism has 2 triangular bases and 3 rectangular faces, making a total of 5 faces.

15. Which of the following is a two-dimensional shape?

a) Cube
b) Cylinder
c) Rectangle
d) Sphere

Answer:

c) Rectangle

Explanation:

A rectangle is flat and has only length and width, making it a two-dimensional shape.

16. The number of vertices in a pyramid is:

a) Equal to the number of faces
b) One more than the number of faces
c) One less than the number of faces
d) Twice the number of faces

Answer:

b) One more than the number of faces

Explanation:

Every pyramid has a base and the additional vertex at the top.

17. Which shape has two vertices and one curved surface?

a) Sphere
b) Cone
c) Cylinder
d) Cube

Answer:

c) Cylinder

Explanation:

A cylinder has two vertices (at the centers of the circular bases) and one curved surface.

18. A three-dimensional shape can be described by its:

a) Area
b) Perimeter
c) Volume
d) Radius

Answer:

c) Volume

Explanation:

The amount of space occupied by a 3D shape is called its volume.

19. If a solid object is sliced parallel to its base, the shape obtained is called a:

a) Cross-section
b) Vertex
c) Edge
d) Diagonal

Answer:

a) Cross-section

Explanation:

When a solid is cut by a plane parallel to its base, the exposed section is known as a cross-section.

20. Which solid shape has 5 faces, 5 vertices, and 8 edges?

a) Cube
b) Tetrahedron
c) Triangular prism
d) Square pyramid

Answer:

d) Square pyramid

Explanation:

A square pyramid has 1 square base, 4 triangular faces, 5 vertices, and 8 edges.

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