Ruby program to calculate parallelogram circumference

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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}"

Output:

Please enter base of parallelogram: 
10
Please enter side of parallelogram: 
30
Circumference of parallelogram is: 80.0
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