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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