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The sides of an equilateral triangle are increasing at the rate of 2 cm/s. The rate at which the area increases, when side is 10 cm is : |
$\frac{10}{3}cm^2/s$ $20\sqrt{3}cm^2/s$ $10\sqrt{3}cm^2/s$ $10cm^2/s$ |
$10\sqrt{3}cm^2/s$ |
