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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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Knowledge Check

  • The rate of change of the area of a circle with respect to its radius r at r=6 cm is a) 10 pi b) 12 pi c) 8 pi d) 11 pi

    A
    10 pi'
    B
    12 pi .'
    C
    8 pi'
    D
    11 pi'

  • Choose the correct answer The rate of change of the area of a circle w.r.t its radius r at r = 6 cm is.

    A
    `10pi`
    B
    `12pi`
    C
    `8pi`
    D
    `11pi`

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