Question

in given figure,AD=3cm,AE=5cm,BD=4cm., CE=4cm,CF=2,BF=2.5cm, then​

Answer 1

The lines EF and AB are parallel. The lenght of EF is 3.11 cm.

Step-by-step explanation:

In triangle ABC and EFC,

                   (Common angle)

Since two corresponding sides are proportional and including angle are equal.

By SAS rule of similarity, we get

                   (CPCTC)

                   (CPCTC)

Since the corresponding angles are equal, therefore we can say that the lines EF and AB are parallel.

Therefore the lines EF and AB are parallel. The lenght of EF is 3.11 cm.