Answer:
114 degrees
Explanation:
Because when you add 27 and 39 together you get 66. And the interior of a triangle equals 180 so now you must subtract the 66 from 180. And once you do that you get 114 degrees.
I believe The answer is B. Hope this Helps :)
The answer to your question is,
Two. The twin towers both collapsed.
-Mabel <3