It would be the Bloom of the automobiles.
The answer it true could yu mark branilest plz

1) x=9, because we can use the Pythagorean theorem, x^2 + 144 = 225, x^2 = 81
2)
, because 6^2 +6^2 = 72, 
3)
, because 
hope this helps... load for images!
i wish i could tell you but i am not a scientist.