Primary 5 · Mathematics · 3D Solids & Nets
3D Solids & Nets questions for Primary 5 Maths
10 questions to work through online. Answer and you get the working straight away, then a score at the end. No sign-up, and you can retake it as often as you like.
- Counting faces
- Counting edges
- Counting vertices
- Naming solids
- Nets
- Properties of solids
Answers and explanations for all 10 questions
Every answer with the reasoning behind it. Worth reading after you have tried the set — or on its own, if you are a parent marking it.
Count the faces of a cube. How many are there?
Answer: 6
A cube has 6 square faces, 12 edges and 8 vertices.
How many edges does a cuboid have?
Answer: 12
A cuboid has 12 edges: 4 around the top, 4 around the bottom and 4 uprights.
How many vertices does a square-based pyramid have?
Answer: 5
Four corners on the square base plus the apex on top: 5 vertices.
Which solid has 2 circular faces and 1 curved surface?
Answer: Cylinder
A cylinder has a circle at each end joined by one curved surface.
A net is made of 6 squares. Which solid does it fold into?
Answer: Cube
Six equal squares fold up into a cube.
A net is made of 1 square and 4 triangles. Which solid does it fold into?
Answer: Square-based pyramid
The square is the base and the four triangles fold up to meet at the apex.
How many faces does a triangular prism have?
Answer: 5
Two triangular ends and three rectangular sides: 5 faces.
A net is made of 2 circles and 1 rectangle. Which solid does it fold into?
Answer: Cylinder
The rectangle wraps around to form the curved surface, with a circle at each end.
How many edges does a square-based pyramid have?
Answer: 8
Four edges around the square base and four sloping up to the apex: 8 edges.
Which solid has no vertices at all?
Answer: Sphere
A sphere is a single smooth curved surface with no corners at all.