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Find the rate of change of the area of a...

Find the rate of change of the area of a circle with respect to its radius r when`r = 3 cm`

Text Solution

Verified by Experts

The correct Answer is:
`6pi"cm"^(2)//s`
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Knowledge Check

  • Find the rate of change of the area of a circle with respect to its radius r when r = 4 cm, is

    A
    `6picm^2//s`
    B
    `4picm^2//s`
    C
    `8picm^2//s`
    D
    None of these

  • Find the rate of change of the area of a circle with respect to its radius r when r = 4 cm, is

    A
    `6picm^2//s`
    B
    `4picm^2//s`
    C
    `8picm^2//s`
    D
    None of these

  • Find the rate of change of the area of a circle with respect to its radius r when r= 5 cm, is

    A
    `8picm^2//cm`
    B
    `10picm^2//cm`
    C
    `11picm^2//cm`
    D
    None of these

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    Find the rate of change of the area of a circle with respect to its radius 'r' when r = 5 cm.

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