Identify 3D Shapes Worksheet - Color-coded activity for recognizing cubes, cylinders, spheres, and more.

Problem Description:

The task is to identify and shade 3D shapes based on their types using the following color coding:
- Cubes: Red
- Cuboids: Yellow
- Spheres: Green
- Pyramids: Blue
- Cylinders: Pink
- Triangular Prisms: Grey

Solution Approach:

1. Identify Each Shape: Carefully examine each shape in the image and determine its type (cube, cuboid, sphere, pyramid, cylinder, or triangular prism).
2. Apply Color Coding: Use the provided color coding to shade each shape appropriately.
3. Verify: Double-check each shape to ensure accurate identification and shading.

Step-by-Step Identification and Shading:

#### Row 1:
1. Shape 1: A cube (all faces are squares).
- Color: Red
2. Shape 2: A pentagonal prism (not a 3D shape listed, so no shading).
3. Shape 3: A pyramid (triangular base with triangular sides).
- Color: Blue
4. Shape 4: A triangle (2D shape, not shaded).

#### Row 2:
5. Shape 5: A sphere (perfectly round).
- Color: Green
6. Shape 6: A cylinder (circular bases connected by a curved surface).
- Color: Pink
7. Shape 7: A cuboid (rectangular faces).
- Color: Yellow
8. Shape 8: A cuboid (rectangular faces).
- Color: Yellow

#### Row 3:
9. Shape 9: A pyramid (triangular base with triangular sides).
- Color: Blue
10. Shape 10: A cube (all faces are squares).
- Color: Red
11. Shape 11: A triangular prism (triangular bases connected by rectangular sides).
- Color: Grey
12. Shape 12: A pyramid (triangular base with triangular sides).
- Color: Blue

#### Row 4:
13. Shape 13: A triangular prism (triangular bases connected by rectangular sides).
- Color: Grey
14. Shape 14: An ellipsoid (not a perfect sphere, but similar to a sphere).
- Color: Green
15. Shape 15: A cuboid (rectangular faces).
- Color: Yellow
16. Shape 16: A cylinder (circular bases connected by a curved surface).
- Color: Pink

Final Shading Summary:

- Red: Shapes 1, 10
- Yellow: Shapes 7, 8, 15
- Green: Shapes 5, 14
- Blue: Shapes 3, 9, 12
- Pink: Shapes 6, 16
- Grey: Shapes 11, 13

Final Answer:

\[
\boxed{
\text{Shade as follows:}
\begin{aligned}
&\text{Red: Shapes 1, 10} \\
&\text{Yellow: Shapes 7, 8, 15} \\
&\text{Green: Shapes 5, 14} \\
&\text{Blue: Shapes 3, 9, 12} \\
&\text{Pink: Shapes 6, 16} \\
&\text{Grey: Shapes 11, 13}
\end{aligned}
}
\]