Calculate the side AD of triangle ABC — task. Maths CBSE Live product, Class 10.

In \(\triangle ABC\), \(DE \parallel BC\) and \(\frac{AE}{EC} = \frac{4}{1}\). If \(DB = 2.2 \ cm\), then \(AD =\)

\(cm\).

Answer variants:

9.8

10.8

7.8

8.8

Did you find an error?

3. Calculate the side AD of triangle ABC