Visualising Solid Shapes Test

Result

Visualising Solid Shapes Test - 17

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Weekly Quiz Competition

Question 1
1 / -0

Which amongst the following is a polyhedron?

A
cone

B
sphere

C
cube

D
cylinder

Solution

$$\textbf{Step - 1: Define Polyhedron}$$
$$\text{A polyhedron is a three dimensional shape with flat polygonal faces, straight edges}$$
$$\text{ and sharp corners or vertices.}$$
$$\textbf{Step - 2: Eliminate options}$$
$$\text{From the above options,}$$
$$\text{Cones, spheres, and cylinders are non-polyhedrons}$$

$$\text{Because their sides are not polygons and they have curved surfaces.}$$
$$\textbf{Hence , option(C) is correct, cube is a polyhedron.}$$
Question 2
1 / -0

From the object front view, what will you see?

A

B

C

D

Solution

If you were looking at the 3D shape from the front view, you will see the first option image.
Question 3
1 / -0

In which polyhedron has 6 faces, 8 vertices and 12 edges?

A
Cube

B
Sphere

C
Triangular prism

D
Cone

Solution

A cube has $$6$$ faces, $$8$$ vertices and $$12$$ edges.
Question 4
1 / -0

Flat faces solid is called

A
polygon

B
triangle

C
polyhedron

D
pyramid

Solution

Flat faces solid is called polyhedron.
Example: cube is a polyhedron.
Question 5
1 / -0

What is the name of the polyhedron?

A
pyramid

B
triangular prism

C
rectangular prism

D
triangle

Solution

The name of the polyhedron is triangular prism.
Question 6
1 / -0

Which amongst the following is not a polyhedron?

A

B

C

D

Solution

$$\textbf{Step - 1: Define Polyhedron}$$

$$\text{A polyhedron is a three dimensional shape with flat polygonal faces, straight edges}$$
$$\text{ and sharp corners or vertices}$$

$$\textbf{Step - 2: Eliminate options}$$

$$\text{From the above options, all except option (D) is not a polyhedron, because it is a cone.}$$

$$\textbf{Hence , option(D) is correct, It is not a polyhedron.}$$
Question 7
1 / -0

Which shape is a top view for the given figure?

A

B

C

D

Solution

The first option shape is a top view for the given figure because there are only three squares at the topmost surface of the given $$3D$$ figure.
Question 8
1 / -0

Find out the side view for the given diagram.

A

B

C

D

Solution

The second option will show the side view of the given diagram.
Question 9
1 / -0

How many triangles are there in tetrahedron polyhedron?

A
4

B
6

C
7

D
9

Solution

There are $$4$$ triangles in tetrahedron polyhedron.
Question 10
1 / -0

In which polyhedron, any plane section is a convex polygon?

A
convex polyhedron

B
concave polyhedron

C
non-convex polyhedron

D
non-concave polyhedron

Solution

A polyhedron is said to be convex if its surface does not intersect itself.
In convex polyhedron, any plane section is a convex polygon.
Example: Tetrahedron