Respuesta :

Answer:

DE= 30

Step-by-step explanation:

Look at BC and EF;

14 → 20

Scale factor = 14/20 = 7/10

AB/DE = 7/10

AB = 21

DE = 30

21/30=7/10

Well I would either add multiply or divide the corners and I would put it as a division problem and then that’s how I find my answer