An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:
| 1. | An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is: |
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Answer: Option D Explanation: 100 cm is read as 102 cm.
(A2 - A1) = [(102)2 - (100)2] = (102 + 100) x (102 - 100) = 404 cm2.
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A1 = (100 x 100) cm2 and A2 (102 x 102) cm2.
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