Perimeter calculation worksheet for students to practice finding the perimeter of different shapes.

Worksheet titled "Perimeter" with instructions to calculate the perimeter of various rectangles and squares, including a sample problem with dimensions 5 cm by 3 cm.

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Final Answer:
Perimeter of the first shape (rectangle, 8 cm × 3 cm): 22 cm
Perimeters of the other shapes (in order, left to right, top to bottom):
1. 4 cm × 1 cm → 10 cm
2. 5 cm × 2 cm → 14 cm
3. 8 cm × 4 cm → 24 cm
4. 4 cm × 4 cm → 16 cm
5. 7 cm × 2 cm → 18 cm
6. 8 cm × 5 cm → 26 cm
7. 9 cm × 6 cm → 30 cm
8. 12 cm × 5 cm → 34 cm
9. 10 cm × 9 cm → 38 cm
10. 12 cm × 9 cm → 42 cm

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Parent Tip: Review the logic above to help your child master the concept of third grade perimeter worksheet.

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