The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the ratio of surface areas of the balloon in the two cases.

The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumbed into it. Find the ratio of surface areas of the balloon in the two cases.

The radius of a spherical balloon increases from 7cm to 14cm as air is being pumped into it.Find the ratio of surface areas of the balloon in the two cases.

The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. The ratio of surface area of the balloon in the two cases is :

The radius of a spherical balloon increases from 14 cm to 35 cm as air is pumped into it. Find the ratio of surface areas of the balloon in these two cases.

The diameter of a spherical balloon increases from 14 cm. to 28 cm. as air is being pumped into it. Find the ratio of surface areas of the balloons in the two cases.

The length of radius of a spherical gas ballon increases from 7 cm to 21 cm as air is being pumped into it, then find the ratio of surface areas of the ballon in two cases .

The radius of a spherical balloon increases from 7cm to 14cm as air is being pumped into it. Find the ratio of surface areas of the original balloon to the resulting new balloon.

The radius of a spherical balloon increases from 7cm to 14cm as air is being pumped into it.Find the ratio of surface areas of the original balloon to the resulting new balloon.