class Geometry::Circle
Attributes
radius[RW]
Public Class Methods
new(radius)
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# File lib/gemometry.rb, line 60 def initialize(radius) @radius = radius.to_f end
Public Instance Methods
area()
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# File lib/gemometry.rb, line 68 def area Math::PI * @radius ** 2 end
circumference()
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# File lib/gemometry.rb, line 64 def circumference 2 * @radius * Math::PI end