Question: please help (a) Water was poured into a conical vessel at a constant rate of 24 cms/sec. The conical vessel had a diameter of 30

please help

(a) Water was poured into a conical vessel at a constant rate of 24 cms/sec. The conical vessel had a diameter of 30 cm and height of 30 cm. At what rate was the circular water surface area increasing when the depth was 16 cm? [35]

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