Can someone conirm if i'm right or not?

We know that  is the diameter of circle, so . By knowing that central angles have the same degree value as the arcs they form by intercepting the circle, we now know that arc . So, the arc  

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?