Question

The radius of a hemispherical balloon 4 to 8 cm as air is being pumped into it.Find the ratios of curved surface area of the balloon in the cases ​

PLEASE ANSWER THIS, IT'S VERY URGENT

Answer 1

Answer:

8 : 31

Step-by-step explanation:

First the radius of ballon =4

Second the radius of the ballon =8

Now, surface of area will be

=3 pie r^2 : 3 pie (8)^2

=4^2 : 8^2

=16 : 62

=8 : 31 Answer

Hope it is helping.