# Python | Percentage increase in hemisphere volume if radius is increased

Given that the radius of a hemisphere is increased by a fixed percentage so, the target is to calculate the percentage increase in the volume of the hemisphere.

Examples:
Input :
20
Output :
72.8 %

Input :
70
Output :
391.3 %

Approach:
Let, the radius of the hemisphere = Given percentage increase = Volume before increase = New radius after increase = So, new volume = Change in volume = Percentage increase in volume = Below is the Python code implementation of the above mentioned approach.

 # Python3 program to find percentage increase   # in the volume of the hemisphere   # if the radius is increased by a given percentage        def newvol(x):            print("percentage increase in the  volume of the"           " hemisphere is ", pow(x, 3) / 10000 + 3 * x                   + (3 * pow(x, 2)) / 100, "%")        # Driver code   x = 10.0 newvol(x)

Output :

percentage increase in the volume of the hemisphere is  33.1 %

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