Assertion and Reason Questions Class 8 Maths Chapter 10 Visualising Solid Shapes

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Assertion and Reason Questions Class 8 Maths Chapter 10 Visualising Solid Shapes

1.) Assertion (A) – 

Reasons (R) –The name of the shape is square.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

2.) Assertion (A) –

Reasons (R) –The name of the shape is cone.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

3.) Assertion (A) –

Reasons (R) –The name of the shape is cuboid.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

4.) Assertion (A) –

Reasons (R) –The name of the shape is triangle

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

5.) Assertion (A) –

Reasons (R) –The name of the shape is cylinder.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

6.) Assertion (A) –

Reasons (R) –The name of the shape is cuboid.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

7.) Assertion (A) –

Reasons (R) –The name of the shape is circle.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

8.) Assertion (A) –A cuboid has 6 faces

Reasons (R) –a cuboid is a convex polyhedron bounded by six quadrilateral faces, whose polyhedral graph is the same as that of a cube

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

9.) Assertion (A) –A cube has 4 faces

Reasons (R) –a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

10.) Assertion (A) –8 vertices does a cube have

Reasons (R) –a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

11.) Assertion (A) –10 vertices does a cuboid have

Reasons (R) –a cuboid is a convex polyhedron bounded by six quadrilateral faces, whose polyhedral graph is the same as that of a cube

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

12.) Assertion (A) –12 edges does a cuboid have

Reasons (R) –a cuboid is a convex polyhedron bounded by six quadrilateral faces, whose polyhedral graph is the same as that of a cube

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

13.) Assertion (A) –12 edges does a cube have

Reasons (R) –a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

14.) Assertion (A) –3 faces does a triangular pyramid have

Reasons (R) –A triangular pyramid is a geometric solid with a triangular base, and all three lateral faces are also triangles with a common vertex

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

15.) Assertion (A) –4 vertices does a triangular pyramid have

Reasons (R) –A triangular pyramid is a geometric solid with a triangular base, and all three lateral faces are also triangles with a common vertex

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

16.) Assertion (A) –8 edges does a triangular pyramid have

Reasons (R) –A triangular pyramid is a geometric solid with a triangular base, and all three lateral faces are also triangles with a common vertex

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

17.) Assertion (A) –4 faces does a triangular prism have

Reasons (R) –A triangular prism is a 3D shape with two identical faces in the shape of a triangle connected by three rectangular faces.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

18.) Assertion (A) –6 vertices does a triangular prism have

Reasons (R) –A triangular prism is a 3D shape with two identical faces in the shape of a triangle connected by three rectangular faces.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

19.) Assertion (A) –6 edges does a triangular prism have

Reasons (R) –A triangular prism is a 3D shape with two identical faces in the shape of a triangle connected by three rectangular faces.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

20.) Assertion (A) –6 faces does a pyramid with square base have

Reasons (R) –A square pyramid is a three-dimensional geometric shape that has a square base and four triangular bases that are joined at a vertex

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

21.) Assertion (A) –6 vertices does a pyramid with square base have

Reasons (R) –A square pyramid is a three-dimensional geometric shape that has a square base and four triangular bases that are joined at a vertex

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

22.) Assertion (A) –8 edges does a pyramid with square base have

Reasons (R) –A square pyramid is a three-dimensional geometric shape that has a square base and four triangular bases that are joined at a vertex

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

Observe the following figure as assertions for the following questions:-

23.) Reasons (R) –The number of faces is 8

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

24.) Reasons (R) –The number of vertices is 10

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

25.) Reasons (R) –The number of edges is 15

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

26.) Assertion (A) –For any polyhedron, F + V – E = 2 where ‘F’ stands for number of faces, V stands for number of vertices and E stands for number of edges

Reasons (R) –For a polyhedron, if ‘F’ stands for number of faces, V stands for number of vertices and E stands for number of edges.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

27.) Assertion (A) –The top-view of a cone looks like triangle.

Reasons (R) –A cone is a three-dimensional geometric shape that tapers smoothly from a flat base

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

28.) Assertion (A) –The base of a prism is any shape

Reasons (R) –A prism is a 3-dimensional shape with two identical shapes facing each other

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

29.) Assertion (A) –Number of vertices a cone has 1

Reasons (R) –A cone is a three-dimensional geometric shape that tapers smoothly from a flat base

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

30.) Assertion (A) –The side-view of a cone appears as triangle.

Reasons (R) –A cone is a three-dimensional geometric shape that tapers smoothly from a flat base

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

Answers:

1:a         2:a         3:c         4:a         5:c         6:c

7:c         8:a         9:d         10:a       11:d       12:a

13:a       14:d       15:a       16:d       17:d       18:a

19:a       20:d       21:d       22:a       23:d        24:a

25:a       26:a       27:d       28:a       29:a       30:d

Updated: January 29, 2022 — 1:44 pm

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