Find the surface area of a sphere whose volume is 179*3+2/3
Formulae
For Volume 4/3*pi*r^3
For surface area 4*pi*r^2
2007-01-24 15:42:01 · 8 answers · asked by Sony 2 in Science & Mathematics ➔ Mathematics
Volume = 179*3 + 2/3
4/3*pi*r^3 = 1613/3
r = 5.04
Surface Area = 4*pi*r^2
= 4 *pi*(5.04)^2
= 319.2
2007-01-24 16:08:04 · answer #1 · answered by seah 7 · 1⤊ 1⤋
equate the forula for Volume equ with 179*3+2/3
4/3*pi*r^3=179*3+2/3
then find the radius
4/3*22/7*r^3=179*3+2/3
apply the rule of BODmAS to sole the right hand side ie179*3+2/3
88/21*r^3=1613/3
r^3=1613*21/3*88
take the ube root ans will be
r=5.04
now u have found out the radius substitute its value in the surfae area equ n u will get the surfae area
4*22/7*5.04^2
the surfae area is =319.3344
2007-01-24 21:44:44 · answer #2 · answered by Anonymous · 0⤊ 1⤋
4/3*pi*r^3=179*3+2/3( since the volume is equal to the rhs)
4*pi*r^3=1613
r^3=1613/4*pi
r^3=1613*7/4*22 (pi=22/7)
r^3=128.30581
r=5.0436595
surface area=4*pi*r^2
=4*22*5.043695^2/7
=316.6696 sq.units
2007-01-24 22:05:18 · answer #3 · answered by Varsha P 1 · 0⤊ 1⤋
Surface area of a sphere whose volume is 179*3+2/3 is
537+2/3
179.66
Volume is 179.66 = 4*22/7*r^3
i.e r^3 = 14.29
r = 4.76
Surface area of a sphere is 4*pi*r^2
4*22/7*(4.76)^2
284.83 sphere units
Hence surface area of a sphere is 284.83 cm^2.
2007-01-24 17:26:23 · answer #4 · answered by ajaz a 1 · 0⤊ 1⤋
volume=4/3*pi*r^3= 179*3+2/3
=> r^3=537.666/4.18
=128.63
r= 5.04
surface area = 4*pi*r^2
= 319.02
2007-01-24 18:08:39 · answer #5 · answered by pravi 1 · 0⤊ 1⤋
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2016-10-16 01:55:49 · answer #6 · answered by Anonymous · 0⤊ 0⤋
SONY i think i cant solve it .it is a very difficult.
2007-01-24 15:53:30 · answer #7 · answered by Anonymous · 0⤊ 1⤋
it is very difficult to solve.....anyway i think the result is zero
2007-01-24 15:47:34 · answer #8 · answered by shuvadip d 3 · 0⤊ 1⤋