Section A: Multiple Choice Questions
1. Which of the following shapes has no vertex?
A. Cube
B. Cone
C. Cylinder
D. Sphere
Answer: Sphere (D)
Explanation: A sphere is completely round and has no corners or vertices.
2. Which of these objects can roll and slide?
A. Ball
B. Cone
C. Book
D. Dice
Answer: Cone (B)
Explanation: A cone can roll on its curved surface and slide on its flat face.
3. How many edges does a cuboid have?
A. 6
B. 8
C. 12
D. 10
Answer: 12 (C)
Explanation: A cuboid has 12 edges.
4. Which shape has 1 curved surface and 1 circular face?
A. Cone
B. Cylinder
C. Sphere
D. Cuboid
Answer: Cone (A)
Explanation: A cone has exactly one circular flat face and one curved surface.
Section B: Fill in the Blanks
5. Number of faces in a cube = 6
6. Number of edges in a cuboid = 12
7. Number of corners in a cone = 1
8. Total number of curved surfaces in 3 cylinders = 3 (1 curved surface per cylinder × 3)
9. A cylinder has how many faces + edges + corners (add total) = 3
(2 flat faces + 1 curved face + 0 edges + 0 corners = 3)
10. Number of square faces in 2 dice = 12 (6 square faces × 2 dice)
Section C: Match the following
11.
Answer:
Section D: Word Problems
12. Tara made a building using 3 cubes and 2 cuboids. Find the total number of faces, edges, and corners in her model.
Answer: Faces: Cube (6×3 = 18), Cuboid (6×2 = 12). Total = 30
Edges: Cube (12×3 = 36), Cuboid (12×2 = 24). Total = 60
Corners: Cube (8×3 = 24), Cuboid (8×2 = 16). Total = 40
13. A cold drink can is in the shape of a cylinder. Does it have any corners? How many faces does it have?
Answer: No, it has 0 corners.
It has 3 faces (1 curved face, 2 circular flat faces).
14. You have a cylinder open from the top and the bottom. If you open it like a mat, what shape do you see?
Answer: If we opened it like a mat , we will get a rectangle.
15. Your classroom dustbin is in the shape of a cylinder. Find the number of flat and curved surfaces.
Answer: A cylindrical dustbin has 2 flat surfaces and 1 curved surface.
16. Which shape has more corners: a cube or a cone?
Answer: A cube has more corners (8 corners). A cone has only 1 corner at the tip
Hence, A cube has more corners than a cone.