kinda. 'This - ilyen' here indicates a reference to something you may be pointing at, so 'this tall' refers to that thing's height. Here's an example (yours was good as well though): - How tall is your sister? - Hm, she's like this tall (you say, holding your hand out to show the height)
I hope it helped. If not, feel free to ask :)
just as gwe1980 said, ilyen = like this, olyan = like that (though i'd like to mention that "like this/that" can also be translated to "így/úgy", which refer to the manner of something (answering "how"). Ex.: do it like this = csináld így. "ilyen/olyan" refer to state what something is like (answering "what .... like, what kind"). Ex.: egy ilyen autó = a car like this Egy ilyen autó az álmom = my dream is a car like this)
Because in this context, that's not what "this" means.
Honestly, I would advise you not to tap on words at all but even if you do, don't ever expect all listed translations to work. There isn't a single course where you could just do that. The best result a creator could achieve is that the first hint works 90% of cases. Hints are context-unaware - the only way they interact with the actual sentence to translate is that if the "best translation" includes a word listed in the hints, Duo will put that word on the top and the rest appears nevertheless, no matter how irrelevant.
So don't even attempt to just put hint words one after the other, it won't work.