Question

Triangle ABC is similar to triangle DEF

Answer 1

Answer:

A my dude. good luck!!!!!

Answer 2

Answer:

A

Step-by-step explanation:

AC = 5

DF = 15

5 x 3 = 15

BC = 3

EF = 9

3 x 3 = 9

Do you see the pattern? So as you can see the difference between Triangle ABC and DEF is the multiply/divide 3 so if you want to find DE then you should set it up as:

$\frac{4}{3}$ = $\frac{DE}{9}$  and to check if its right if you solve it you get $\frac{4}{3}$ = $\frac{12}{9}$

and as you see $\frac{12}{9}$ and $\frac{4}{3}$ are literally the same thing just you need to simplify $\frac{12}{9}$