1.

The side if an equilateral triangle are increasing at the rate of 4 cm/sec. the rate at which its areais increasing, when the side is 14 cm.

Answer»

1)`42cm^(2)//SEC`
2)`10sqrt2 cm^(2)//sec`
3)`14cm^(2)//sec`
4)`28sqrt3cm^(2)//sec`



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