anonymous
  • anonymous
Find the surface area of the sphere to the nearest square unit. hold on, i have to draw it
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
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lgbasallote
  • lgbasallote
\[\huge SA = 4\pi r^2\] will that help?
anonymous
  • anonymous
just make sure ur using the radius not the diameter

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anonymous
  • anonymous
no it doesn't help/: A. 13 in.2 B. 50 in.2 C. 6 in.2 D. 3 in.2
anonymous
  • anonymous
how do i find the answer
lgbasallote
  • lgbasallote
what is your radius in this problem? do you know?
anonymous
  • anonymous
2?
lgbasallote
  • lgbasallote
no. that is the diameter. to get the radius, divide that by 2
anonymous
  • anonymous
so 1?
lgbasallote
  • lgbasallote
right. so substitute that to the equation i gave you
anonymous
  • anonymous
i feel like an idiot, idk what to do
lgbasallote
  • lgbasallote
r = 1 right? because it's the radius`
anonymous
  • anonymous
yes
anonymous
  • anonymous
would it be 3 in^2
lgbasallote
  • lgbasallote
so replace r with 1 in the equation i wrote...what do you get?
anonymous
  • anonymous
13 in^2
anonymous
  • anonymous
?
lgbasallote
  • lgbasallote
will you elaborate how you got that?

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