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27 April, 19:07

Q7 Calculate the volume of a

sphere with diameter of 4.2mm.

+5
Answers (2)
  1. 27 April, 20:46
    0
    38.792 or 38.808

    Step-by-step explanation:

    Formula for Volume of Sphere = 4 x pi x 1/3 x r cubed

    So,

    if diameter = 4.2, then radius = 4.2 divided by 2 = 2.1

    Now, volume =

    4 x 22/7 x 1/3 x 2.1^3 = 38.808

    But is you used 3.14 as pi,

    then the volume = 38.792
  2. 27 April, 21:53
    0
    Answer: 38.79 cu. mm.

    Step-by-step explanation:

    Volume = 4/3π x r^3

    = 4/3π x 2.1^3

    = 4/3 x 22/7 x 9.261

    = 38.79
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