Here's the question you clicked on:
Beautiful_Lier96
to find the volume of a balloon how am i suppost to find the radius ? i know it says find the circumference of the balloon first but im totally confused. is it supposed to be in inches.
If you assume the balloon is "perfectly" spherical, the circumference will be equal to \[C = 2 \pi r\] rearrange and solve for r, but do it in cm, not inches.