marnyepeyton marnyepeyton
  • 11-10-2018
  • Mathematics
contestada

What is the radius of a sphere with a surface area of 144πcm2?

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panicathedicsophan03
panicathedicsophan03 panicathedicsophan03
  • 11-10-2018

I believe the radius would be 3.39

Hope this helps! Good luck! :)

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bts22
bts22 bts22
  • 11-10-2018

Surface Area = 4πr²

144(π)cm² = 4(π)r²             Divide by π on both sides

144cm² = 4r²                      Divide by 4 on both sides

36 = r²                               Find the square root of both sides

√36 = √r²

6 = r


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