Anyone go to k12 NCVA?

What is the measure of the smallest angle in the diagram? 15 29 32 45

Having a hard time understanding this question (see attachment).

Which is the correct first step in finding the area of the base of a cylinder with a volume of 26x cubic meters and a height of 6.5 meters? v=bh 6.5=b(26x) v=bh v=26pi+(6.5) v=bh v=26pi(6.5) v=bh 26pi=b(6.5)