Question

) ∆ ABC and ∆ DEF are equilateral triangle .If A( ∆ ABC) :A( ∆ DEF) =1:2 and AB=4, find DE=?


1) 8 √2

2) 10 √2

3)2 √2

4) 4√2​

Answer 1

Answer:

4✓2 is the right answer for this question