colombia50 colombia50
  • 03-07-2017
  • Mathematics
contestada

What is the surface area of a sphere with a radius of 7 feet?

Respuesta :

koziadam koziadam
  • 03-07-2017
Use thy formula for surface area of a sphere.

4(pi)r^2
4(pi)(7)^2
4(pi)(49)
196(pi)

615.75
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 04-07-2017
SA=4pir^2
r=7
SA=4pi7^2
SA=4pi49
SA=196pi square feet

if we used pi=3.14 then
SA=615.44 square feet
Answer Link

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