Question

The net diagram represents a

A. Cone
B. triangle
C. Sphere
D. Cylinder

Answer 1

Hint:
We have to use all the given 2D shapes to form a 3D shape. We will first fold the rectangular sheet to form a tube like structure and then put two circles on the bases of the formed tube. Then, identify the shape formed.

Complete step by step solution:
The given diagram consists of 2 circles and one rectangle.
We will combine these shapes to form a 3D figure.
If we fold the rectangle such that it forms a tube like structure as shown in the figure below.

Now, we will put the two circles on both the ends of the formed tube, to make circular bases of the given figure.

Here, we can see the figure represents a cylinder.
Moreover, a cone has only two surfaces, a triangle is a 2D object and a sphere has only one curved surface.
Therefore, from the options, the figure with 3 surfaces is a cylinder.
Hence, we can say that the net diagram represents a cylinder.

Thus, option D is correct.

Note:
One must know the shapes of the 3D figures to write the correct option. We can also do this question practically by cutting the shapes and joining in the appropriate manner. This approach of 3D figures also helps in learning the formulas of curved surface area and total surface area.