Easy Level Worksheet
Part A: Subjective Questions - Very Short Answer (1 Mark Each)
Note: Answer each question with steps and explanation. Write down the answers on sheet and submit to the school subject teacher.
Solid shapes are three-dimensional objects that have length, breadth, and height. They exist in the real world around us!
Let's explore the basic properties of common 3D shapes like cubes, cuboids, spheres, and more.
1. What is a 3D object?
A 3D object is
Perfect! 3D objects have three dimensions and occupy space.
2. Write two examples of 3D shapes.
Answer:
3. What is a face of a solid figure?
A face is
Correct! Faces are the flat surfaces that form the boundaries of 3D shapes.
4. How many edges does a cube have?
Answer:
Great! A cube has 12 edges (line segments where two faces meet).
5. How many vertices does a cuboid have?
Answer:
Perfect! A cuboid has 8 vertices (corner points).
Drag each property to its correct 3D shape:
Part A: Section B – Short Answer Questions (2 Marks Each)
1. Name the 3D shapes formed by the following:
(a) A square →
(b) A rectangle →
Excellent! A square forms a cube, and a rectangle forms a cuboid.
2. Draw rough sketches of a cube and cuboid.
Note: Draw these on your answer sheet:
Cube: All sides equal, all faces are squares
Cuboid: Opposite faces equal, faces are rectangles
Did you complete your sketches?
Great! Remember to label the shapes in your drawings.
3. Write the number of faces, edges, and vertices of a triangular prism.
Number of faces =
Number of edges =
Number of vertices =
Perfect! A triangular prism has 5 faces, 9 edges, and 6 vertices.
4. Identify the 3D shape:
(a) A ball →
(b) A cone-shaped tent →
Excellent! You can identify 3D shapes from real-world objects.
5. Write any two differences between a cube and a cuboid.
Difference 1: Cube has
Difference 2: Cube has
Great! Both are important 3D shapes with distinct properties.
Part B: Objective Questions - Test Your Knowledge!
Answer these multiple choice questions:
6. A cylinder has how many curved surfaces?
(a) 1 (b) 2 (c) 3 (d) 0
Correct! A cylinder has 1 curved surface and 2 flat circular faces.
7. The base of a cone is:
(a) Square (b) Triangle (c) Circle (d) Rectangle
Perfect! A cone has a circular base and a curved surface meeting at a vertex.
8. Which of the following 3D shapes has no vertex?
(a) Cube (b) Sphere (c) Cone (d) Pyramid
Excellent! A sphere has no vertices, edges, or flat faces - it's perfectly curved.
9. Which of the following has two circular faces?
(a) Cone (b) Sphere (c) Cylinder (d) Cube
Perfect! A cylinder has two circular faces (top and bottom) and one curved surface.
10. A solid object with only one face is:
(a) Cone (b) Sphere (c) Cylinder (d) Cube
Correct! A sphere has only one curved surface (one face) with no edges or vertices.
🎉 Fantastic Work! You've Mastered Basic 3D Shapes!
Here's what you learned:
3D Objects: Shapes with length, breadth, and height
Key Terms:
- Face: Flat or curved surface of a solid
- Edge: Line segment where two faces meet
- Vertex: Point where edges meet (corner point)
Common 3D Shapes:
Shape Faces Edges Vertices Cube 6 (all squares) 12 8 Cuboid 6 (rectangles) 12 8 Sphere 1 (curved) 0 0 Cylinder 3 (2 flat + 1 curved) 2 0 Cone 2 (1 flat + 1 curved) 1 1 Real-World Examples:
- Cube: Dice, Rubik's cube
- Cuboid: Brick, book, box
- Sphere: Ball, globe
- Cylinder: Can, pipe
- Cone: Ice cream cone, party hat
Key Differences:
- Cube: All sides equal, all faces are squares
- Cuboid: Opposite sides equal, faces are rectangles
Understanding 3D shapes helps us describe and analyze objects in the real world!