Perimeter calculation worksheet featuring geometric shapes with labeled dimensions.

Absolutely! Let’s calculate the perimeter of each shape. As the reminder says:
> *To calculate the perimeter, we add together the lengths of all the sides. Don’t forget to include the unit of measurement in your answers.*

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1. Rectangle (12 cm by 7 cm)

A rectangle has two pairs of equal sides.

- Top and bottom = 12 cm each → 12 + 12 = 24 cm
- Left and right = 7 cm each → 7 + 7 = 14 cm

Perimeter = 24 cm + 14 cm = 38 cm

✔ Answer: 38 cm

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2. Square (80 mm per side)

All four sides of a square are equal.

- Perimeter = 80 mm + 80 mm + 80 mm + 80 mm = 4 × 80 mm = 320 mm

✔ Answer: 320 mm

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3. Triangle (sides: 10 cm, 7 cm, 6 cm)

This is a scalene triangle — all sides are different.

- Perimeter = 10 cm + 7 cm + 6 cm = 23 cm

✔ Answer: 23 cm

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4. Trapezoid (sides: 5 cm, 6 cm, 8 cm, 6 cm)

Add all four sides:

- 5 cm + 6 cm + 8 cm + 6 cm = 25 cm

✔ Answer: 25 cm

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5. Pentagon (all sides labeled 12 cm)

It appears to be a regular pentagon (all sides equal), with 5 sides.

- Perimeter = 5 × 12 cm = 60 cm

✔ Answer: 60 cm

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## ✔ Final Answers:

1. Rectangle → 38 cm
2. Square → 320 mm
3. Triangle → 23 cm
4. Trapezoid → 25 cm
5. Pentagon → 60 cm

Let me know if you’d like to convert any units (like mm to cm) or need diagrams explained further! 🦉