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प्रश्न
Take a thick paper sheet of length 14 cm and width 9 cm. You can also use an old postcard.
- What is its area? What is its perimeter?
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उत्तर
Area of rectangle = l × b
= 14 × 9
= 126 square cm.
Perimeter = 2(l + b)
= 2(14 + 9)
= 2 × 23
= 46 cm.
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