Ruby Koan 151 raising exceptions

Question

I\'m going through the ruby koans, I\'m on 151 and I just hit a brick wall.

Here is the koan:

# You need to write the triangle method in the file \'trian         


        

Answer 1

You could also try to instance the exception with:

raise TriangleError.new("All sides must be greater than 0") if a * b * c <= 0