1.

AABC and ADEF are equilateral triangles, A(AABC): (ADEF) = 1:2If AB = 4 then what is length of DE = ?(a) (b) 4(c) 8d)plz give explanation ​

Answer»

answer: ∆abc and ∆DEF

1:2

AR ∆abc/ ar ∆def = 1/2= (ab)2 /(DE)2

1/2= (4)2/(de)2

1/2= 16/(de)2

(de)2=32

DE= √32

de=4√2


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