Program to calculate the Area and Perimeter of Incircle of an Equilateral Triangle

Given the length of sides of an equilateral triangle, the task is to find the area and perimeter of Incircle of the given equilateral triangle.

Examples:

Input: side = 6 
Output: Area = 9.4. Perimeter = 10.88

Input: side = 9
Output: Area = 21.21, Perimeter = 16.32

Properties of an Incircle are:

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