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What is the sum of the perimeters of all the squares of sides 14 cm obtained from the rectangular sheet of dimension 3.5 m × 2.8 m?1. 280 m2. 240 m3. 160 m4. 320 m |
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Answer» Correct Answer - Option 1 : 280 m Given: The side of the square is 14 cm and the dimension of the rectangular sheet is 3.5 m × 2.8 m. Formula Used: Area of square = Side × Side Area of rectangle = length × breadth The perimeter of square = 4 × side Calculation: The number of squares obtained from the rectangular sheet = (3.5 m × 2.8 m)/ (14 cm × 14 cm) The number of square obtained = (350 cm × 280 cm)/(14 cm × 14 cm) = 500 Now, perimeter of one square = 4 × 14 = 56 cm Perimeter of all the square obtained = 500 × 56 = 28000 cm = 280 m ∴ The perimeter of all the squares is 280 m. |
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