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5 September, 05:37

What is the radius of a sphere with a surface area of 100πcm2?

10 cm

5 cm

25 cm

3 cm

+2
Answers (1)
  1. 5 September, 05:40
    0
    Sa=4pir^2

    100pi=4pir^2

    divide both sides by 4pi

    25=r^2

    sqrt both sides

    5=r

    radius=5cm
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