there is a way. try working things out. talk to him listen to what he has to say and make him listen to you. try calling him. I'm in a situation like that with a girl. I'm in love with her but she doesn't love me. we dated 3 times but it didn't work out. I love her and wish she felt the same. but in your situation Fernando most likely does love you back just something happened that he doesn't think he can forgive you for.
We use this formula to calculate the sum of all interior angles of a regular polygon; 180(n-2) , n= number of sides so 180(5-2) = 540 each interior angle = 540 ÷ 5 = 108