3D Objects

6 Grade 6 Mathematics questions on 3D Objects, with worked marking schemes. 6 questions are available on this topic in full.

Question 1
1 mark
Which 3D shape is the net of 6 squares?
A. Prism
B. Cuboid
C. Cube
D. Pyramid
(1 mark)
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Question 2
1 mark
The formula V = l × w × h applies to which 3D shape?
A. Cone
B. Sphere
C. Cylinder
D. Cuboid
(1 mark)
Marking scheme
D. Cuboid — multiplying three perpendicular lengths only works for a box shape. A cylinder and a cone need $π$ , since their cross-section is a circle.
Question 3
1 mark
A triangular prism has how many faces?
A. 6
B. 5
C. 3
D. 4
(1 mark)
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Question 4
1 mark
A square-based pyramid has how many vertices?
A. 4
B. 5
C. 8
D. 6
(1 mark)
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Question 5
1 mark
How many edges does a triangular pyramid (tetrahedron) have?
A. 12
B. 4
C. 8
D. 6
(1 mark)
Marking scheme
D. $6$ — three edges round the base and three rising to the apex. B is the number of faces and vertices, which a tetrahedron happens to share.
Question 6
1 mark
A cone has how many edges?
A. 2
B. 0
C. 1
D. 3
(1 mark)
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Question 1