Question

A spherical balloon has a 26​-in diameter when it is fully inflated. Half of the air is let out of the balloon. Assume that the balloon remains a sphere.
a. Find the volume of the​ fully-inflated balloon.
b. Find the volume of the​ half-inflated balloon.
c. What is the diameter of the​ half-inflated balloon?
I need help with c

Answer 1

Answer:

Volume A = 4/3 x pi x r^3 = 4/3 x 3.14 x 13^3 = 9198.11 cubic inches

Volume B = 4/3 x pi x r^3 = 4/3 x 3.14x 7.5^3 = 1766.25 cubic inches

Diameter = 13 in

Step-by-step explanation: