MHT CET 2022 Mathematics question

Mathematics Application of Derivatives MHT CET 2022

The sides of an equilateral triangle are increasing at the rate of 2cm/sec. The rate at which the area increases, when side is 10 cm, is

(A) cm/sec
(B) cm/sec
(C) cm/sec
(D) cm/secCorrect

Answer: (D)

Solution

Area of an equilateral triangle of side is . Differentiating with respect to time, . With

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Question ID VK-094480