7.
Check whether the lines of the triangle are parallel
Exercise condition:
4 m.
In a \(\triangle ABC\), \(D\) and \(E\) are points on the sides \(AB\) and \(AC\), respectively. If \(AD = 1 \ cm\), \(DB = 6 \ cm\), \(EC = 195 \ cm\) and \(AE = 299 \ cm\), then \(DE \parallel BC\).