In ADEF, the measure of ZF=90°, the measure of ZD=62°, and FD = 3.5 feet. Find the length of DE to the nearest tenth of a foot.

step- i d k and i d c : )

you: : 0

bye

what's the question here?

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5