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Rectangle ABCD with length 8 cm and breadth 5 cm, showing diagonal AC.

A diagram showing a rectangle ABCD with sides labeled 8 cm and 5 cm, and a diagonal AC.

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Show Answer Key & Explanations Step-by-step solution for: CBSE Class 7 Mental Maths Perimeter And Area Worksheet

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9. 153.94 m
10. 87.96 cm
11. 21.99 cm
12. 153.94 cm²
13. 615.75 cm²
14. 49 cm
15. Circumference: 131.95 cm; Distance in 10 revolutions: 1319.5 cm
16. 2 : 5
17. 1099.56 cm
18. 5 cm
19. 7 cm
20. 874 m
21. 35 m
22. 20 cm²
23. 12.25 cm²

Parent Tip: Review the logic above to help your child master the concept of area and perimeter worksheet grade 7.

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