If D is a point on the side AB of ΔABC such that AD : DB = 3.2 and E is a Point on BC such that DE || AC. Find the ratio of areas of ΔABC and ΔBDE.

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asked Feb 13, 2018 in Mathematics by sforrest072 (157,439 points) 60 409 937

If D is a point on the side AB of ΔABC such that AD: DB = 3.2 and E is a Point on BC such that DE || AC. Find the ratio of areas of ΔABC and ΔBDE.

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answered Feb 13, 2018 by mdsamim (213,225 points) 5 10 15
selected Feb 13, 2018 by sforrest072
 
Best answer

We have

By area of similar triangle theorem

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