Respuesta :

Answer:

DE=10

Step-by-step explanation:

Overall length DF is 13 EF is 3

13-3=10

zumar

Answer:



Step-by-step explanation:

as we know that

DF=DE+EF

DF-EF=DE

OR

DE=DF-EF

by putting values

DE=13-3

DE=10

i hope u will understand