class PolymorphicShape::Circle
Constants
- PI
Attributes
radius[RW]
Public Class Methods
new(radius)
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# File lib/shape/polymorphic_shape/circle.rb, line 5 def initialize(radius) @radius = radius end
Public Instance Methods
area()
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# File lib/shape/polymorphic_shape/circle.rb, line 9 def area (@radius * @radius) * PI end