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In a Δ ABC, D,E,F are respectively, the ...

In a Δ ABC, D,E,F are respectively, the mid- points of BC,CA, and AB. If the lengths of side AB, BC and CA are 7 cm, 8 cm, 9 cm, respectively, find the perimeter of Δ DEF.

A

`12 cm`

B

`21 cm`

C

`24 cm`

D

`18 cm`

Text Solution

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The correct Answer is:
A
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