Question

I need answer with proper method
​

Answer 1

u can use the method of....... area of triangle......

area of∆DEF/area of ∆ABC.....

u can get answer....

and the answer is 12cm

Answer 2

perimeter of equilateral triangle=3×s

side=8cm (all sides are equal)

3×8

=24cm
if perimeter of abc is 24cm
perimeter of def =24/2
=12cm
bcoz def are midpoint s of ab bc ca
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