2D Shapes: How Many Sides? - Top Teacher - Free Printable

Let's solve this step by step. The task is to count the number of sides of each 2D shape and then color the correct number below each shape.

> 🔹 Remember: A *side* is a straight line that joins two vertices (corners). Curved lines do not count as sides.

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Let's go through each shape:

#### 1. Circle
- It has no straight sides — only a curved edge.
- ✔ Number of sides: 0
- Color 0

#### 2. Rectangle
- Has 4 straight sides (two long, two short).
- ✔ Number of sides: 4
- Color 4

#### 3. Square
- Also has 4 equal straight sides.
- ✔ Number of sides: 4
- Color 4

#### 4. Triangle
- Has 3 straight sides.
- ✔ Number of sides: 3
- Color 3

#### 5. Pentagon
- A five-sided polygon.
- ✔ Number of sides: 5
- Color 5

#### 6. Hexagon
- A six-sided polygon.
- ✔ Number of sides: 6
- Color 6

#### 7. Octagon
- An eight-sided polygon.
- ✔ Number of sides: 8
- Color 8

#### 8. Trapezoid
- A quadrilateral with one pair of parallel sides.
- Has 4 straight sides.
- ✔ Number of sides: 4
- Color 4

#### 9. Parallelogram
- Opposite sides are parallel and equal.
- Has 4 straight sides.
- ✔ Number of sides: 4
- Color 4

#### 10. Oval (Ellipse)
- Smooth curved shape — no straight sides.
- ✔ Number of sides: 0
- Color 0

#### 11. Star (Regular 5-pointed star)
- This is a regular star polygon (like a pentagram).
- Each point has 2 sides meeting at a vertex.
- Total: 10 straight sides (each of the 5 points has 2 sides).
- ✔ Number of sides: 10
- Color 10

#### 12. Heart
- Made of curves and smooth lines — no straight sides.
- ✔ Number of sides: 0
- Color 0

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Final Answers Summary:

| Shape | Number of Sides | Color |
|--------------|------------------|-------|
| Circle | 0 | 0 |
| Rectangle | 4 | 4 |
| Square | 4 | 4 |
| Triangle | 3 | 3 |
| Pentagon | 5 | 5 |
| Hexagon | 6 | 6 |
| Octagon | 8 | 8 |
| Trapezoid | 4 | 4 |
| Parallelogram| 4 | 4 |
| Oval | 0 | 0 |
| Star | 10 | 10 |
| Heart | 0 | 0 |

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✔ Instructions for Coloring:

For each shape, color the box with the correct number below it:
- Circle → color 0
- Rectangle → color 4
- Square → color 4
- Triangle → color 3
- Pentagon → color 5
- Hexagon → color 6
- Octagon → color 8
- Trapezoid → color 4
- Parallelogram → color 4
- Oval → color 0
- Star → color 10
- Heart → color 0

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✔ Tip: For shapes like stars, remember that even though they look "pointy", each side is a straight line segment — so count all straight edges!

Let me know if you'd like a printable version or visual guide!