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triangle.rb
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triangle.rb
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# Triangle Project Code.
# Triangle analyzes the lengths of the sides of a triangle
# (represented by a, b and c) and returns the type of triangle.
#
# It returns:
# :equilateral if all sides are equal
# :isosceles if exactly 2 sides are equal
# :scalene if no sides are equal
#
# The tests for this method can be found in
# about_triangle_project.rb
# and
# about_triangle_project_2.rb
#
# Error class used in part 2. No need to change this code.
class TriangleError < StandardError
end
def triangle(a, b, c)
begin
if a == b && b == c && a + b + c != 0
:equilateral
elsif a + b < c
raise TriangleError, "Error"
elsif a + c == b
raise TriangleError, "Error"
elsif a + b + c != 0 && (a == b || a == c || b == c)
:isosceles
elsif a != b && b != c && a != c && a > 0 && b > 0 && c > 0
:scalene
elsif a + b + c == 0
raise TriangleError, "Error"
elsif a < 0 || b < 0 || c < 0
raise TriangleError, "Error"
end
# rescue TriangleError => ex
# result = :exception_handled
end
end