Довжина кола дорівнює 31,4 м. Знайди радіус кола. (π ≈ 3,14.)

My old friend
Since this essay is supposed to be dedicated to an old friend, i would like to tell you about a literally old friend of mine. Though I am young, and he is like 50 years older than me, we have been able to make good friends. He always helps me with my homework when I request it from him. And I always do. Even now I did. I mean I asked him to help me to help with the exact essay, so it is he who is writting it, not me. 
I'm just kidding, do not take it seriously. But it is really exciting to have a mature friend. I mean I get experience everytime I talk to him. He have had an interesting life and he has a lot to share. What is more, I'm positive that we have really a lot in common. We like the same movies, the same music, and we see the world in the same way. So the real point of my essay is that the generation gap is not always a hurdle for friendship. Friendship is a matter of soul unity.