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Ruby program to calculate parallelogram circumference

Following program shows you how to calculate parallelogram circumference. This program gets parallelogram base and side from user and calculates circumference and prints it using following formula Circumference = 2 X base X side

 puts "Please enter base of parallelogram:"
 parallelogramBase = gets.to_f
 puts "Please enter side of parallelogram:"
 parallelogramSide = gets.to_f
 circumferenceOfParallelogram = 2 * (parallelogramBase + parallelogramSide)
 puts "Circumference of parallelogram is: #{circumferenceOfParallelogram}"


Please enter base of parallelogram: 
Please enter side of parallelogram: 
Circumference of parallelogram is: 80.0