Ruby program to calculate the perimeter of the circle

Program/Source Code:

The source code to calculate the perimeter of the circle is given below. The given program is compiled and executed successfully.

# Ruby program to calculate the 
# perimeter of the circle

print "Enter radius: ";
radius = gets.chomp.to_i;  

perimeter = 2* 3.14 * radius;

print "Perimeter of circle: ",perimeter;

Output:

Enter radius: 6
Perimeter of circle: 37.68

Explanation:

In the above program, we read the radius from the user and calculated the perimeter of the circle. After that, we printed the result.