The length of the side of a square sheet of metal is increasing at the rate of \[4cm/\sec \]. The rate at which the area of the sheet is increasing when the length of its side is 2 cm, is

The length of the side of a square sheet of metal is increasing at the

1.	The length of the side of a square sheet of metal is increasing at the rate of \[4cm/\sec \]. The rate at which the area of the sheet is increasing when the length of its side is 2 cm, is
A.	\[16\,c{{m}^{2}}/\sec \]
B.	\[8\,c{{m}^{2}}/\sec \]
C.	\[32\,c{{m}^{2}}/\sec \]
D.	None of these
Answer» B. \[8\,c{{m}^{2}}/\sec \]

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The length of the side of a square sheet of metal is increasing at the rate of \[4cm/\sec \]. The rate at which the area of the sheet is increasing when the length of its side is 2 cm, is

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