Question

PLEASE HELP I was really sure that this would be 13 but it's not and I have no clue on what to do.​

Answer 1

Answer: its 11

Step-by-step explanation:

DE is similar to BF and BF is half the line of BC so half of 22 is 11

Answer 2

Answer:

11

Step-by-step explanation:

Another way you can think is as

$\frac{AD}{AB} = \frac{AD}{2AD} = \frac{1}{2}$

Given D & E are mid points of AB & AC

So, DE must be parallel to BC

By the property of similar triangles

ADE ~ ABC

$\frac{DE}{BC} = \frac{1}{2} \\ \frac{DE}{22} = \frac{1}{2 } \\ DE = \frac{22}{2} = 11$

Hope it helps too ;))