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

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Tomas.A
 3 years ago
Best ResponseYou've already chosen the best response.2do you know formula for calculating surface area of a sphere?

penberth
 3 years ago
Best ResponseYou've already chosen the best response.1yes but I keep getting 153.94

Tomas.A
 3 years ago
Best ResponseYou've already chosen the best response.2In all answers there are p, so I guess its \(\pi\)? So you should not write 3.14 instead of it but just keep it.

penberth
 3 years ago
Best ResponseYou've already chosen the best response.1this is due today and I have no idea what you just said

Tomas.A
 3 years ago
Best ResponseYou've already chosen the best response.2write down formula of sphere for me

Tomas.A
 3 years ago
Best ResponseYou've already chosen the best response.2ok 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.

penberth
 3 years ago
Best ResponseYou've already chosen the best response.1thanks but I found it on yahoo answers

Tomas.A
 3 years ago
Best ResponseYou've already chosen the best response.2do you understand why its not 153.94?
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