From: Sijo Kg Date: 2009-08-07T14:33:37+09:00 Subject: Re: What is wrong with this program? Hi two errors there 1 area_of_triange=Math.sqrt(s*(s-side_a)*(s-side_b)*(s-side_c)) spelling mistake in area_of_triange 2 return area area is not defined Sijo -- Posted via http://www.ruby-forum.com/.