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13 October, 00:01

If the diameter of a sphere is 1 meter, then what is its surface area? Leave your answer in terms of π = 3.14

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  1. 13 October, 00:47
    0
    Surface area of a sphere = 4 pi r^2

    when r = 1/2 meter (because diameter = 2r = 1) the surface area

    = 4 * 3.14 * 0.5^2 = 3.14 square meters
  2. 13 October, 03:21
    0
    surface area = 4 x pi x r^2

    diameter = 1 so radius = 1/2 = 0.5

    4 x 3.14 x 0.5^2 = 3.14 meters^2
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