The rate of change of area of a square is 40 cm2/s. What will be the r – McqOptions

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1.	The rate of change of area of a square is 40 cm2/s. What will be the rate of change of side if the side is 10 cm.
A.	2 cm/s
B.	4 cm/s
C.	8 cm/s
D.	6 cm/s
Answer» B. 4 cm/s

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