3D Objects

Q. All solid shapes have 4 dimensions.

1. True
2. False

Q. What is the value of (E + F + V) for the given $3$-D structure?

• $E$ represents the total number of edges of the figure.
• $F$ represents the total number of faces of the figure.
• $V$ represents the total number of vertices of the figure.

[2 Marks]

Q. Determine the number of faces, vertices and edges of the following shape.

1. 6 faces, 8 vertices and 12 edges
2. 6 faces, 9 vertices and 12 edges
3. 8 faces, 8 vertices and 12 edges
4. 6 faces, 8 vertices and 10 edges

Q. Determine the number of faces, vertices and edges of the following shape.

1. 5 faces, 6 vertices and 8 edges
2. 5 faces, 5 vertices and 9 edges
3. 6 faces, 5 vertices and 8 edges
4. 5 faces, 5 vertices and 8 edges

Q. Identify the edge of the cuboid.

1. 
2. 
3. 
4. 

Q. To level a cricket pitch, we use a roller, the roller is in the shape of a .

1. cuboid
2. sphere
3. cylinder
4. cube

Q. The given figure is a triangular pyramid.

1. True
2. False

Q. A rectangular prism is also known as .

1. cuboid
2. cylinder
3. cube

Q. If you take two regular triangular pyramids and stick them along a common base, what will be the number of edges in the new three dimensional shape formed?

1. 10
2. 9
3. 12
4. 8

Q.

What is the number of faces in a triangular pyramid?

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