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प्रश्न
The side of a square field is 16 m. What will be increase in its area, if each of its sides is doubled?
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उत्तर
Side of a square field (a) = 16 m
∴ Area of a square field = (a)2
= 16 × 16 m2 = 256 m2
Each of its side is doubled
∴ New side = (16 × 2)m = 32 m
∴ New area of the square field = (a)2
= 32 × 32 m2 = 1024 m2
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