loghanmyers
loghanmyers loghanmyers
  • 11-07-2017
  • Mathematics
contestada

Find the length of the radius of a sphere with a surface area of 5541.77 cm2.

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mreijepatmat
mreijepatmat mreijepatmat
  • 11-07-2017
The area of a sphere: A  = 4.π.R²

A= 5541.77 → 5541.77 = 4.π.R²

R² = (5541.77)/(4.π)
R² = 441; → R =√441; R = 21 cm

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