(Urgent!!) A spherical balloon is leaking air at 2 cubic inches per hour. How fast is the balloon’s radius changing when the radius is 3 inches?

initial volume of balloon =

so intial volume is 113.14 cubic inches

volume after one hour will be 113.14 - 2 = 111.14 inches

new radius

Rate change of radius is

Rate change is 0.7% per hour the radius is decreasing

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

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