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If the side of square is increased by 6%, then what will be the percentage increase in its area?1). 13.52). 12.043). 12.124). 12.36 |
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Answer» ⇒ Let the side of the square be 100 cm ⇒ Area of the square = 100 × 100 = 10000 cm2 ⇒ As side of the square is INCREASED by 6%, the new vaue of side = 100 + (6% of 100) = 100 + 6 = 106 cm ⇒ New area of the square = 106 × 106 = 11236 cm2 ⇒ Percentage increase in area = [(Final Area - ACTUAL Area)/Actual Area] × 100% ⇒ [(11236 - 10000)/10000] × 100% = (1236/100)% = 12.36% ∴ REQUIRED Percentage = 12.36% |
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