Q. 14.9( 11 Votes )

# In a <span lang="

Answer :

Given,

In ΔABC

D, E, F are the mid points of BC, CA and AB

AB = 7cm

BC = 8cm

CA = 9cm

We need to find out the perimeter of DEF So,   So, perimeter of DEF

DE+EF+DF = 4+3.5+4.5 = 12cm

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