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Primary 2 Mathematics Shapes Quiz
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Questions
Primary 2 Mathematics Quiz - Shapes
Name: ___________________________
Class: Primary 2 _______
Date: _______________
Score: ______ / 20
Duration: 30 minutes
Total Marks: 20
Instructions:
- Read each question carefully.
- Write your answers in the spaces provided.
- For multiple-choice questions, circle the correct letter (A, B, C, or D).
- Show your working where needed.
- Check your answers before handing in.
Section A: Multiple Choice Questions (Questions 1–8, 1 mark each)
1. Which of the following is a 3D shape?
A. Square
B. Triangle
C. Cube
D. Circle
Answer: _______
2. How many flat faces does a cuboid have?
A. 4
B. 6
C. 8
D. 12
Answer: _______
3. A cone has _______ flat face(s) and _______ curved surface(s).
A. 1 flat face, 1 curved surface
B. 2 flat faces, 1 curved surface
C. 1 flat face, 2 curved surfaces
D. 0 flat faces, 1 curved surface
Answer: _______
4. Which 3D shape has no flat faces and no edges?
A. Sphere
B. Cylinder
C. Cube
D. Pyramid
Answer: _______
5. Look at the shape below.
<image_placeholder>
id: Q5-fig1
type: diagram
linked_question: Q5
description: A 3D shape that looks like a can with two circular flat faces and one curved surface
labels: Circular flat faces (top and bottom), Curved surface
values: None
must_show: Two parallel circular faces connected by a curved surface, resembling a cylinder
</image_placeholder>
What is the name of this 3D shape?
A. Cone
B. Cylinder
C. Sphere
D. Cuboid
Answer: _______
6. How many vertices (corners) does a cube have?
A. 6
B. 8
C. 10
D. 12
Answer: _______
7. Which of the following statements about a pyramid with a square base is correct?
A. It has 4 triangular faces and 1 square face.
B. It has 5 triangular faces and 1 square face.
C. It has 4 square faces and 1 triangular face.
D. It has 5 square faces.
Answer: _______
8. A shape has 2 flat circular faces and 1 curved surface. It can roll and slide. What shape is it?
A. Cone
B. Sphere
C. Cylinder
D. Cuboid
Answer: _______
Section B: Short Answer Questions (Questions 9–16, 1 mark each)
9. Name the 3D shape that has 6 square faces, 12 edges, and 8 vertices.
Answer: ___________________________
10. How many edges does a cuboid have?
Answer: ___________________________
11. A triangular prism has _______ rectangular faces and _______ triangular faces.
Answer: _______ rectangular faces, _______ triangular faces
12. Circle the 3D shapes in the list below:
Square, Cube, Triangle, Sphere, Rectangle, Cylinder, Circle, Cone
Answer: ___________________________
13. Complete the table below for a cone.
| Shape | Number of Flat Faces | Number of Curved Surfaces | Number of Edges | Number of Vertices |
|---|---|---|---|---|
| Cone |
Answer: Fill in the table above.
14. Which 3D shape has only 1 vertex?
Answer: ___________________________
15. Look at the net below.
<image_placeholder>
id: Q15-fig1
type: diagram
linked_question: Q15
description: A 2D net consisting of 6 identical squares arranged in a cross shape (1 square in the center, 4 squares attached to each side, and 1 square attached to one of the side squares)
labels: Square faces
values: All squares are identical
must_show: A valid net of a cube with 6 squares in a cross arrangement
</image_placeholder>
What 3D shape can be formed by folding this net?
Answer: ___________________________
16. A cylinder has _______ edges and _______ vertices.
Answer: _______ edges, _______ vertices
Section C: Application Questions (Questions 17–20, 2 marks each)
17. Study the picture below.
<image_placeholder>
id: Q17-fig1
type: diagram
linked_question: Q17
description: A composite figure made of a cuboid (bottom) and a triangular prism (top) forming a house-like shape
labels: Cuboid base, Triangular prism roof
values: None
must_show: A cuboid with a triangular prism on top, clearly showing the two 3D shapes combined
</image_placeholder>
(a) Name the two 3D shapes used to make this figure.
(b) How many flat faces does the whole figure have in total? (Do not count hidden faces where the two shapes join.)
Answer:
(a) ___________________________ and ___________________________
(b) ___________________________ flat faces
18. Ravi has a collection of 3D shapes. He sorts them into two groups:
Group X: Shapes that can roll
Group Y: Shapes that cannot roll
He has: 2 spheres, 3 cubes, 1 cylinder, 2 cones, 4 cuboids, 1 triangular prism.
(a) How many shapes are in Group X?
(b) How many shapes are in Group Y?
Answer:
(a) ___________________________ shapes
(b) ___________________________ shapes
19. Look at the pattern of 3D shapes below.
<image_placeholder>
id: Q19-fig1
type: diagram
linked_question: Q19
description: A repeating pattern of 3D shapes: Cube, Cylinder, Cone, Cube, Cylinder, Cone, Cube, Cylinder, [blank], [blank]
labels: Shape 1: Cube, Shape 2: Cylinder, Shape 3: Cone, Shape 4: Cube, Shape 5: Cylinder, Shape 6: Cone, Shape 7: Cube, Shape 8: Cylinder
values: Pattern repeats every 3 shapes
must_show: 8 shapes in a row with the 9th and 10th positions blank for students to complete
</image_placeholder>
Draw the next two shapes in the pattern.
Answer: Draw the 9th and 10th shapes in the boxes below:
□ □
20. Mrs Tan bought a gift box in the shape of a cube. She wants to wrap it with wrapping paper.
(a) How many faces of the cube does she need to cover?
(b) If each face of the cube is a square of side 10 cm, what is the total area of wrapping paper needed to cover the whole box? (Give your answer in cm².)
Answer:
(a) ___________________________ faces
(b) ___________________________ cm²
End of Quiz
Answers
Primary 2 Mathematics Quiz - Shapes (Answer Key)
Total Marks: 20
Section A: Multiple Choice Questions (Questions 1–8, 1 mark each)
1. Answer: C
Explanation: A cube is a 3D (three-dimensional) shape. Squares, triangles, and circles are 2D (flat) shapes.
Key concept: 3D shapes have depth/volume; 2D shapes are flat.
2. Answer: B
Explanation: A cuboid has 6 flat faces (all rectangles, or squares for a cube which is a special cuboid). Think of a box — it has a top, bottom, front, back, left side, and right side = 6 faces.
Common mistake: Confusing faces with edges (12) or vertices (8).
3. Answer: A
Explanation: A cone has 1 flat circular face (the base) and 1 curved surface that tapers to a point (the vertex).
Key concept: "Flat face" = flat surface; "curved surface" = rounded surface.
4. Answer: A
Explanation: A sphere (ball) is perfectly round with no flat faces, no edges, and no vertices. A cylinder has 2 flat faces; a cube has 6 flat faces; a pyramid has flat faces.
5. Answer: B
Explanation: The diagram shows a shape with two parallel circular flat faces (top and bottom) and one curved surface connecting them. This is a cylinder.
Visual check: Cone has 1 circular face + pointed top; Sphere has no flat faces; Cuboid has rectangular faces.
6. Answer: B
Explanation: A cube has 8 vertices (corners). You can count them: 4 on the top face, 4 on the bottom face.
Memory aid: A cube has 6 faces, 12 edges, 8 vertices.
7. Answer: A
Explanation: A square-based pyramid has 1 square base and 4 triangular faces that meet at the top vertex. Total = 5 faces.
Common mistake: Thinking it has 5 triangular faces (that would be a triangular pyramid/tetrahedron with a different base).
8. Answer: C
Explanation: A cylinder has 2 flat circular faces and 1 curved surface. It can roll (on its curved surface) and slide (on its flat faces). A cone can roll but in a circle; a sphere only rolls; a cuboid only slides.
Section B: Short Answer Questions (Questions 9–16, 1 mark each)
9. Answer: Cube
Explanation: A cube is the only 3D shape with exactly 6 square faces, 12 edges, and 8 vertices. All faces are identical squares.
10. Answer: 12
Explanation: A cuboid has 12 edges: 4 along the length, 4 along the width, 4 along the height. Same as a cube.
11. Answer: 3 rectangular faces, 2 triangular faces
Explanation: A triangular prism has 2 triangular faces (the two ends) and 3 rectangular faces (connecting the triangles). Total = 5 faces.
12. Answer: Cube, Sphere, Cylinder, Cone
Explanation: 3D shapes from the list: Cube, Sphere, Cylinder, Cone. The 2D shapes are: Square, Triangle, Rectangle, Circle.
13. Answer:
| Shape | Number of Flat Faces | Number of Curved Surfaces | Number of Edges | Number of Vertices |
|---|---|---|---|---|
| Cone | 1 | 1 | 1 | 1 |
Explanation:
- 1 flat face (circular base)
- 1 curved surface (tapers to a point)
- 1 edge (where the flat face meets the curved surface — a circle)
- 1 vertex (the pointed tip)
14. Answer: Cone
Explanation: A cone has exactly 1 vertex (the pointed tip). A sphere has 0; a cylinder has 0; a cube has 8; a pyramid has 5 (square-based) or 4 (triangular-based).
15. Answer: Cube
Explanation: The net shows 6 identical squares arranged in a cross shape. This is a standard net of a cube. When folded, the 6 squares form the 6 faces of a cube.
16. Answer: 2 edges, 0 vertices
Explanation: A cylinder has 2 edges (the two circles where the flat faces meet the curved surface) and 0 vertices (no corners/points).
Common mistake: Saying 0 edges (the circular rims are edges) or 2 vertices (there are no pointed corners).
Section C: Application Questions (Questions 17–20, 2 marks each)
17.
(a) Answer: Cuboid and Triangular prism (1 mark)
(b) Answer: 9 flat faces (1 mark)
Explanation for (b):
- Cuboid has 6 faces.
- Triangular prism has 5 faces (2 triangles + 3 rectangles).
- When joined, 1 rectangular face of the cuboid and 1 rectangular face of the triangular prism are hidden (where they touch).
- Total visible faces = 6 + 5 − 2 = 9 faces.
Marking note: Award 1 mark for correct total (9). If student says 11 (forgetting to subtract hidden faces), award 0 marks for (b) but mark (a) independently.
18.
(a) Answer: 5 shapes (1 mark)
(b) Answer: 8 shapes (1 mark)
Explanation:
Shapes that can roll (Group X): Spheres (2), Cylinder (1), Cones (2) = 5 shapes.
Reason: These have curved surfaces that allow rolling.
Shapes that cannot roll (Group Y): Cubes (3), Cuboids (4), Triangular prism (1) = 8 shapes.
Reason: These have only flat faces.
Total = 5 + 8 = 13 shapes (matches given total: 2+3+1+2+4+1 = 13).
19. Answer:
9th shape: Cone
10th shape: Cube
Explanation: The pattern repeats every 3 shapes: Cube → Cylinder → Cone → Cube → Cylinder → Cone → ...
Positions: 1=Cube, 2=Cylinder, 3=Cone, 4=Cube, 5=Cylinder, 6=Cone, 7=Cube, 8=Cylinder, 9=Cone, 10=Cube.
Marking: 1 mark for each correct shape in the correct position.
20.
(a) Answer: 6 faces (1 mark)
(b) Answer: 600 cm² (1 mark)
Explanation for (b):
- A cube has 6 identical square faces.
- Area of 1 face = side × side = 10 cm × 10 cm = 100 cm².
- Total area = 6 × 100 cm² = 600 cm².
Working:
1 face = 10 × 10 = 100 cm²
6 faces = 6 × 100 = 600 cm²
Common mistake: Calculating only 1 face (100 cm²) or 4 faces (400 cm²). Must cover all 6 faces to wrap the whole box.
End of Answer Key