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Find the surface area of the sphere to the nearest square unit.
hold on, i have to draw it
 one year ago
 one year ago
Find the surface area of the sphere to the nearest square unit. hold on, i have to draw it
 one year ago
 one year ago

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madisonmaruhnich94Best ResponseYou've already chosen the best response.0
dw:1347568958290:dw
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
\[\huge SA = 4\pi r^2\] will that help?
 one year ago

DomanBest ResponseYou've already chosen the best response.0
just make sure ur using the radius not the diameter
 one year ago

madisonmaruhnich94Best ResponseYou've already chosen the best response.0
no it doesn't help/: A. 13 in.2 B. 50 in.2 C. 6 in.2 D. 3 in.2
 one year ago

madisonmaruhnich94Best ResponseYou've already chosen the best response.0
how do i find the answer
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
what is your radius in this problem? do you know?
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
no. that is the diameter. to get the radius, divide that by 2
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
right. so substitute that to the equation i gave you
 one year ago

madisonmaruhnich94Best ResponseYou've already chosen the best response.0
i feel like an idiot, idk what to do
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
r = 1 right? because it's the radius`
 one year ago

madisonmaruhnich94Best ResponseYou've already chosen the best response.0
would it be 3 in^2
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
so replace r with 1 in the equation i wrote...what do you get?
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
will you elaborate how you got that?
 one year ago
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