find the surface area of a rectangular prism in ruby

main.rb
surface_area = 2 * (length * width + length * height + width * height)
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main.rb
def surface_area_rectangular_prism(length, width, height)
  surface_area = 2 * (length * width + length * height + width * height)
  return surface_area
end
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main.rb
length = 5
width = 3
height = 2

surface_area = surface_area_rectangular_prism(length, width, height)

puts "The surface area of a rectangular prism with length #{length}, width #{width}, and height #{height} is #{surface_area}."
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