In which of these genres would you be least likely to hear a minuet and trio?
1.oratorio
2.symphony
3.string quartet
4.sonata

I believe the correct answer from the choices listed above is option 1. The genre that we least likely to hear a minuet and trio would be an oratorio. It  is a large musical composition for orchestra, choir, and soloists.  It is not intended for use during religious ceremonies, but texts are usually based on scripture.

It is pi over 6:

We first solve this by determining how many times it goes around the circle. When you turn 25pi/6 into a mixed number you get 4pi + 1pi/6. Since it takes 2pi to get around the circle once, you go around the circle twice with 4pi. This leaves with 1pi/6 left at the starting point. The answer is pi/6. 13pi/6 also has the same terminal angle but it is not in range of answers (they are asking for 0-2pi)