Answer:
l think the problem of the is your work is not of the number l got.
x=2
(14)(6)=84 (base)(height)
the first answer common ratio is t2/t1=32/16
=2
I'm not sure of the rest
so you are going to use the Pythagorean theorem on the smaller triangle to find the connecting side's length

now you can find the bigger triangle's hypotenuse

c=4