The third angle is 60 degrees. A triangle has 180 degrees so 180-30-90=60
Where's your options? give the full info please!
Perhaps you could just outline the topic lightly but try your best not to give away your topic idea. In this case talk about technology but don't talk about the dependency of technology, for the first paragraph as mentioned in your title text and then in your second paragraph you could talk about the dependency of technology.
