public static final double getLengthFromASA(final double a0, final double s0, final double a1)
    {
        return (s0 * Math.sin(a0)) / Math.sin(a1);
    }
public static final double getLengthFromASA ( final double a0 , final double s0 , final double a1 ) { return ( s0 * Math . sin ( a0 ) ) / Math . sin ( a1 ) ; }
Returns the length that is opposite a0
http://www.mathsisfun.com/algebra/trig-solving-asa-triangles.html
b/sinB = c/sin C
@param a0
@param s0
@param a1
@return