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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