the surface area of a sphere is 1018 2/7 sq.m, what is its volume
ansss:
SA=10182/7
???
nooo its is1018 2/7 its is mixed fraction
yes i think its mixed fraction
Answers
Answered by
103
given that
surface area = 1018 2/7
= 7128/7
4πr² = 7128/7
r² = 7128×7/7×22×4
r² = 81
r = 9m
volume of the sphere = 4/3πr³
= 4/3×22/7×9×9×9
= 3054.8571 sq.m³.
surface area = 1018 2/7
= 7128/7
4πr² = 7128/7
r² = 7128×7/7×22×4
r² = 81
r = 9m
volume of the sphere = 4/3πr³
= 4/3×22/7×9×9×9
= 3054.8571 sq.m³.
mistakely tht person had typed such
in that way i already checked that one
did u get the answer??
the answer is not coming according to 10182/7
it should come
in what way it should come
if u have doubt on this problem once please check in the two ways then mine is correct
make brainlist answer
but brainlist could be marked onlyby those who had asked the question npt me
not*
Answered by
17
Surface area of sphere = 4*pi*r^2
1018 2/7 = 4*22/7*r^2
7128/7 = 4*22/7*r^2
r^2 = 7128/7*22/7*1/4
r^2 = 1782/22
r^2 = 81
r = root 81
r = 9m
Volume of sphere = 4/3*pi*r^3
= 4/3*22/7*81*9
= 4*22/7*81*3
= 21384/7
= 3053.63 cubic meter
Therefore, the volume of the sphere is 3053.63 m^3.
1018 2/7 = 4*22/7*r^2
7128/7 = 4*22/7*r^2
r^2 = 7128/7*22/7*1/4
r^2 = 1782/22
r^2 = 81
r = root 81
r = 9m
Volume of sphere = 4/3*pi*r^3
= 4/3*22/7*81*9
= 4*22/7*81*3
= 21384/7
= 3053.63 cubic meter
Therefore, the volume of the sphere is 3053.63 m^3.
but the answer is 305.4285
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