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What is the surface area of a sphere with radius of 3.5? A. 12.25p B. 14p C. 24.5p D. 49p
 one year ago
 one year ago
What is the surface area of a sphere with radius of 3.5? A. 12.25p B. 14p C. 24.5p D. 49p
 one year ago
 one year ago

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Tomas.ABest ResponseYou've already chosen the best response.1
do you know formula for calculating surface area of a sphere?
 one year ago

penberthBest ResponseYou've already chosen the best response.0
yes but I keep getting 153.94
 one year ago

Tomas.ABest ResponseYou've already chosen the best response.1
In all answers there are p, so I guess its \(\pi\)? So you should not write 3.14 instead of it but just keep it.
 one year ago

penberthBest ResponseYou've already chosen the best response.0
this is due today and I have no idea what you just said
 one year ago

Tomas.ABest ResponseYou've already chosen the best response.1
write down formula of sphere for me
 one year ago

Tomas.ABest ResponseYou've already chosen the best response.1
ok so \[S=4\pi r^2=4\pi3.5^2=4\pi12.25=49\pi\] and taht's your answer, its D you don't need to use 3.14 instead of \(\pi\) because no one asked you. 3.14 is just approximation of \(\pi\) and for math you need the most accurate result.
 one year ago

penberthBest ResponseYou've already chosen the best response.0
thanks but I found it on yahoo answers
 one year ago

Tomas.ABest ResponseYou've already chosen the best response.1
do you understand why its not 153.94?
 one year ago
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