jo6ycelynwyjitta
jo6ycelynwyjitta jo6ycelynwyjitta
  • 15-10-2016
  • Mathematics
contestada

The surface area of a spherical lampshade is 57.76pi what is the radius from the lampshade

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Marwah18
Marwah18 Marwah18
  • 15-10-2016
the radius is ( by the way I am not sure ) 181.458......
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mrinconj
mrinconj mrinconj
  • 15-10-2016
The area for a sphere is A=4*pi*r^2, so I think for a lampshade should be a semisphere, i mean a half of sphere, the area would be A=(4*pi*r^2)/2
For your problem, solve for r and you will get r=root(57.76pi/(2pi))
r= 5.37
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