If the rate of increase of the radius of a circle is 5 cm/.sec., then the rate of increase of its area, when the radius is 20 cm, will be
(A) 10p (B) 20p (C) 200p (D) 400p

Question

If the rate of increase of the radius of a circle is 5 cm/.sec., then the rate of increase of its area, when the radius is 20 cm, will be (A) 10p (B) 20p (C) 200p (D) 400p

Saurabh Koranglekar · Answer

Dear student The answer is option c Regards

Vikas TU · Answer

Answer : 10πcm/sec....................................................................................................................

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If the rate of increase of the radius of a circle is 5 cm/.sec., then the rate of increase of its area, when the radius is 20 cm, will be (A) 10p (B) 20p (C) 200p (D) 400p

If the rate of increase of the radius of a circle is 5 cm/.sec., then the rate of increase of its area, when the radius is 20 cm, will be
(A) 10p (B) 20p (C) 200p (D) 400p

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If the rate of increase of the radius of a circle is 5 cm/.sec., then the rate of increase of its area, when the radius is 20 cm, will be (A) 10p (B) 20p (C) 200p (D) 400p

If the rate of increase of the radius of a circle is 5 cm/.sec., then the rate of increase of its area, when the radius is 20 cm, will be (A) 10p (B) 20p (C) 200p (D) 400p

2 Answers

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If the rate of increase of the radius of a circle is 5 cm/.sec., then the rate of increase of its area, when the radius is 20 cm, will be
(A) 10p (B) 20p (C) 200p (D) 400p