**CBSE Class 8 Maths – MCQ and Online Tests – Unit 10 – Visualising Solid Shapes**

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**CBSE Class 8 Maths – MCQ and Online Tests – Unit 10 – Visualising Solid Shapes**

Question 1.

How many faces does a triangular pyramid have ?

(a) 1

(b) 2

(c) 3

(d) 4.

## Answer

Answer: (d) 4

Question 2.

The base of a prism is:

(a) Circle

(b) Triangle

(c) Square

(d) Any shape

## Answer

Answer: (d) Any shape

Explanation:

A pyramid is a polyhedron whose base is a polygon (of any number of sides) and whose lateral faces are triangles with a common vertex.

Question 3.

How many vertices does a triangular pyramid have ?

(a) 1

(b) 2

(c) 3

(d) 4.

## Answer

Answer: (d) 4

Question 4.

How many edges does a triangular pyramid have ?

(a) 2

(b) 4

(c) 6

(d) 8.

## Answer

Answer: (c) 6

Question 5.

The name of the shape

(a) triangle

(b) cone

(c) cylinder

(d) sphere

## Answer

Answer: (a) triangle

Question 6.

The name of the shape is

(a) cone

(b) circle

(c) cylinder

(d) cube.

## Answer

Answer: (b) circle

Question 7.

The name of the shape is

(a) cuboid

(b) cube

(c) square

(d) cylinder.

## Answer

Answer: (b) cube

Question 8.

The name of the shape is

(a) cube

(b) cuboid

(c) sphere

(d) square.

## Answer

Answer: (b) cuboid

Question 9.

The name of the shape is

(a) circle

(b) sphere

(c) cylinder

(d) cone.

## Answer

Answer: (b) sphere

Question 10.

A cuboid has how many faces ?

(a) 2

(b) 4

(c) 6

(d) 3.

## Answer

Answer: (c) 6

Question 11.

How many faces does a cube have ?

(a) 6

(b) 4

(c) 3

(d) 2.

## Answer

Answer: (a) 6

Question 12.

How many vertices does a cuboid have ?

(a) 4

(b) 6

(c) 8

(d) 3.

## Answer

Answer: (c) 8

Question 13.

How many edges does a cube have ?

(a) 12

(b) 6

(c) 4

(d) 8.

## Answer

Answer: (a) 12

Question 14.

The name of the shape is

(a) cylinder

(b) square

(c) circle

(d) triangle.

## Answer

Answer: (b) square

Question 15.

The name of the shape is

(a) sphere

(b) cylinder

(c) cone

(d) triangle.

## Answer

Answer: (c) cone

Question 16.

The name of the shape is

(a) cone

(b) sphere

(c) cuboid

(d) cylinder.

## Answer

Answer: (d) cylinder

Question 17.

If a polyhedron has 6 vertices and 12 edges. What is the number of faces it has ?

(a) 6

(b) 8

(c) 12

(d) 18

## Answer

Answer: (b) 8

Explanation:

By Euler’s formula we know that:

For any polyhedron,

F + V – E = 2

F = 2 – V + E

F = 2 – 6 + 12 = 8

Question 18.

Number of vertices a cone has:

(a) One

(b) Two

(c) Three

(d) Four

## Answer

Answer: (a) One

Question 19.

An example of cone is:

(a) Tube

(b) A tent

(c) A ball

(d) A box

## Answer

Answer: (b) A tent

Question 20.

How many faces does a triangular prism have ?

(a) 5

(b) 4

(c) 3

(d) 6.

## Answer

Answer: (a) 5

Question 21.

How many vertices does a triangular prism have ?

(a) 6

(b) 5

(c) 4

(d) 3.

## Answer

Answer: (a) 6

Question 22.

How many edges does a triangular prism have ?

(a) 11

(b) 9

(c) 6

(d) 3.

## Answer

Answer: (b) 9

Question 23.

How many faces does a pyramid with square base have ?

(a) 5

(b) 3

(c) 2

(d) 6.

## Answer

Answer: (a) 5

Question 24.

How many vertices does a pyramid with square base have ?

(a) 5

(b)4

(c) 3

(d) 6.

## Answer

Answer: (a) 5

Question 25.

How many edges does a pyramid with square base have ?

(a) 8

(b) 6

(c) 4

(d) 5.

## Answer

Answer: (a) 8

See the following solid and answer the following questions:

Question 26.

The number of faces is

(a) 6

(b) 7

(c) 8

(d) 9.

## Answer

Answer: (b) 7

Question 27.

The number of vertices is

(a) 5

(b) 7

(c) 8

(d) 10

## Answer

Answer: (d) 10

Question 28.

The number of edges is

(a) 5

(b) 10

(c) 20

(d) 15.

## Answer

Answer: (d) 15

Question 29.

For a polyhedron, if ‘F’ stands for number of faces, V stands for number of vertices and E stands for number of edges, then which of the following relationships is named as Euler’s formula ?

(a) F + V = E + 2

(b) F + E = V + 2

(c) V + E = F + 2

(d) F+ V = E – 2.

## Answer

Answer: (a) F + V = E + 2

Question 30.

A cube has ______ faces.

(a) 4

(b) 5

(c) 6

(d) 8

## Answer

Answer: (c) 6

Explanation:

A cube is a three dimensional shape having six faces.

Question 31.

A sphere has how many faces ?

(a) One

(b) Two

(c) Four

(d) None

## Answer

Answer: (d) None

Explanation:

A sphere is a round-shaped object having no faces and edges.

Question 32.

The top-view of a cone looks like:

(a) A Circle

(b) A Square

(c) A Rectangle

(d) A Triangle

## Answer

Answer: (a) A Circle

Explanation:

The base of a right-cone is always circular. When we see it from the top, it looks like a circle with its vertex as the center of the circle.

Question 33.

The top-view of a cube looks like a:

(a) Circle

(b) Square

(c) Rectangle

(d) Triangle

## Answer

Answer: (b) Square

Explanation:

Since all the faces of a cube are of equal length.

Question 34.

How many vertices does a cube have ?

(a) 8

(b) 6

(c) 4

(d) 2.

## Answer

Answer: (a) 8

Question 35.

How many edges does a cuboid have ?

(a) 12

(b) 8

(c) 6

(d) 4.

## Answer

Answer: (a) 12

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