class Shape
end
class Square < Shape
def initialize(side_length)
@side_length = side_length
end
def area
@side_length * @side_length
end
def perimeter
@side_length * 4
end
end
class Triangle < Shape
def initialize(base_width, height, side1, side2, side3)
@base_width = base_width
@height = height
@side1 = side1
@side2 = side2
@side3 = side3
end
def area
@base_width * @height / 2
end
def perimeter
@side1 + @side2 + @side3
end
end
my_square = Square.new(5)
my_triangle = Triangle.new(6, 6, 7.81, 7.81, 7.81)
puts my_square.area
puts my_square.perimeter
puts my_triangle.area
puts my_triangle.perimeter
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