Q. 3 B4.8( 8 Votes )

# D and E are point

Answer :

Here, by applying converse of Thale’s theorem we can conclude whether or not DE BC.

By Thale’s theorem, Solving for ,

We need to find AD from given AB = 11.7 cm and BD = 6.5 cm.

AD = AB – BD

AD = 11.7 – 6.5

AD = 5.2 …(i)

Solving for ,

We need to find EC from given AC = 11.2 cm and AE = 4.2 cm.

EC = AC – AE

EC = 11.2 – 4.2

EC = 7 …(ii)

As equation (i) is not equal to equation (ii), it doesn’t satisfies Thale’s theorem.

Hence, we can say DE not parallel to BC.

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