3. if perimeter of triangle ABC is 72 cm. Find the perimeter of triangle DEF if vertices D,E and F are the midpoints of the given triangle.

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Q. D, E, F are midpoints of sides BC, CA and AB of

△ A B C

. If the perimeter of

△ A B C

12.8

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Q. Given

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DEF

\sim

△

ABC. If AB = 4 cm, BC = 2 cm, CA = 3 cm and EF = 4 cm, then the perimeter of

△

DEF is

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The corresponding sides of two similar triangles ABC and DEF are BC = 9.1 cm and EF = 6.5 cm. If the perimeter of $Δ D E F$ is 25 cm, find the perimeter of $Δ A B C$ .

Given $△$ DEF $\sim$ $△$ ABC. If AB = 4 cm, BC = 2 cm, CA = 3 cm and EF = 4 cm, then the perimeter of $△$ DEF is ____ cm.

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