Let's solve the problem step by step.
Understanding the Task:
The goal is to determine whether each shape shown in the image is
2-dimensional (2-D) or
3-dimensional (3-D).
-
2-D shapes are flat and have only two dimensions: length and width.
-
3-D shapes are solid and have three dimensions: length, width, and depth (or height).
---
Analyzing Each Shape:
1.
Cylinder
- This has depth (height), a circular base, and volume →
3-D
2.
Square
- Flat, only has length and width →
2-D
3.
Triangular Pyramid (Tetrahedron)
- Has depth and volume; it’s a solid shape →
3-D
4.
Cube
- A solid box with 6 faces; has depth →
3-D
5.
Rectangular Prism (like a box)
- Solid with length, width, and height →
3-D
6.
Circle
- Flat, only has radius and circumference →
2-D
7.
Triangle
- Flat, only two dimensions →
2-D
8.
Sphere
- Round, has volume and depth →
3-D
9.
Rectangle
- Flat, only length and width →
2-D
---
✔ Final Answers:
| Number | Shape | Dimension |
|--------|-------------------|-----------|
| 1 | Cylinder |
3-D |
| 2 | Square |
2-D |
| 3 | Triangular Pyramid|
3-D |
| 4 | Cube |
3-D |
| 5 | Rectangular Prism |
3-D |
| 6 | Circle |
2-D |
| 7 | Triangle |
2-D |
| 8 | Sphere |
3-D |
| 9 | Rectangle |
2-D |
---
How to Fill Out the Worksheet:
Write the answers under each picture:
1. 3-D
2. 2-D
3. 3-D
4. 3-D
5. 3-D
6. 2-D
7. 2-D
8. 3-D
9. 2-D
✔ This completes the task! Let me know if you'd like a printable version or explanation for younger learners.
Parent Tip: Review the logic above to help your child master the concept of 2 dimensional shapes worksheet.
