The correct answer is "togethermeasured" because Syn- is a Greek prefix that means "together". Here, however, it is Sym because metrical makes the N turn into an M as a phonological change in the English language.
Answer: WOW! Space is really amazing.
Explanation:
Number one is an allusion
Number two is a metaphor because it is comparing the dudes face to a white sheet but it didnt use like or as so its not a simile.
Number three therefore would be a simile because it uses the word as to compare two things.