Calculate the side AD of triangle ABC — task. Maths CBSE Homework Assignments, Class 10.

In \(\triangle ABC\), \(DE \parallel BC\) and \(\frac{AE}{EC} = \frac{4}{1}\). If \(DB = 4.9 \ cm\), then \(AD =\)

\(cm\).

Answer variants:

19.6

21.6

20.6

18.6

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1. Calculate the side AD of triangle ABC