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प्रश्न
The error in the measurement of the sides of a rectangle is 1%. The error in the measurement of its area is ______.
विकल्प
1%
`(1//2)`%
2%
None of the above
उत्तर
The error in the measurement of the sides of a rectangle is 1%. The error in the measurement of its area is 2%.
Explanation:
A = l × b
∴ `(triangle"A")/"A" = (trianglel)/l + (triangle "b")/"b"` = 1% + 1% = 2
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