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Relation between Areas and Sides of Similar Triangles

If D is a poi...

Question

If D is a point on the side AB of $Δ A B C$ such that AD : DB =3.2 and E is a point on BC such that DE || AC. Find the ratio of areas of $Δ A B C$ and $Δ B D E$ .

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Solution

We have

By area of similar triangle theorem

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