Method to find the type of triangle by the length of three sides

trianglemagic

#  The problem:
#  Write a triangle method that accepts three numbers as arguments. The method should return a print 
#  whether the three lengths form an equilateral, isosceles, or scalene triangle.
#
#  We were just learning to define methods, and having learned if/else statements and touched on 
#  ternary statements, so we just wanted to make it as concise as we could with our limited knowledge :)
#



def triangle(side1, side2, side3)
    if (side1 == side2 && side1 == side3) || (side1 + side2 <= side3 || side3 + side2 <= side1 || side1 + side3 <= side2)
        (side1 == side2 && side1 == side3) ? puts "equilateral!" : puts "invalid!"
    else 
        (side1 == side2 || side1 == side3 || side3 == side2) ? puts "isosceles!" : puts "scalene!"
    end
end