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Question

In ∆ABC, D, E and F are respectively mid points of BC, CA and AB. If the lengths of side AB, BC and CA are 7 cm, 8 cm and 9 cm respectively, the perimeter of ∆DEF will be 


  1. 15 cm

  2. 19 cm

  3. 20 cm

  4. 12 cm


Solution

The correct option is D

12 cm


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