triangle.rb

# 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
#
def triangle(a, b, c)
  # WRITE THIS CODE
	if (!((b-c).abs < a && a < b+c))
			raise TriangleError, "ops, isso n eh um triangulo"
	elsif (a == b && b == c)
			:equilateral
	elsif(a == b || b == c || c == a)
		:isosceles
	elsif(a != b && a != c && c != b)
		:scalene
	end
end

# Error class used in part 2.  No need to change this code.
class TriangleError < StandardError
end