Math, asked by raajonlyu4150, 7 months ago

9. D and E are respectively the points on the sides AB and AC of a triangle ABC such that AD=2cm,BD=3cm
BC=7.5cm and DE is parallel to BC, find DE.

Answers

Answered by puneet872

Answer:

By Triangle Proportionality Theorem we can proof that-

▲ABC Similar to ▲ADE

Therefore-

AB/AD = BC/DE

5/2=7.5/DE

DE= (2x7.5)/5

DE=3cm

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9. D and E are respectively the points on the sides AB and AC of a triangle ABC such that AD=2cm,BD=3cm BC=7.5cm and DE is parallel to BC, find DE.

Answers

9. D and E are respectively the points on the sides AB and AC of a triangle ABC such that AD=2cm,BD=3cm
BC=7.5cm and DE is parallel to BC, find DE.