Question

If volume of a sphere increases by 72.8% , how much percent does it's Surface Area increases ?? If volume of a sphere increases by 72.8% , how much percent does it's Surface Area increases ?? @Mathematics

Answer 1

what is the formula for volume of sphere??????

Answer 2

see how u will solve it on ur own

Answer 3

Volume = 4/3 * pi * r^3
Surface Area = 4 * pi * r^2

Answer 4

ok thanks

Answer 5

we have to calculate the radius of the sphere because that is only changing and other terms are constant......right

Answer 6

yes.. i am stuck since 2-3 days

Answer 7

so vikrant hvn any idea how to calculate the radius....?

Answer 8

nup :(

Answer 9

give a try dont give up

Answer 10

ok will give u hint let us suppose b4 volume was 100 now the volume is 172.8
so u can solve for radius

Answer 11

so for solving for r u will get 2.87 and 3.45
then u can easily calculate the value for surface area increase

Answer 12

in this case answer is approximately 44.5 %

Answer 13

I am with sheg!

Answer 14

calculate and see

Answer 15

U said 172.8 = 4/3 pi r^3
CUBERT(129.6/pi) = r
How can i calculate a cube root on a paper ????????