For number 2 it's would be 12.8
Sorry I don't have time for number 3
Well, It depends. It is either the mathematical term for 100% - 50%, or 6e*Ehq8deh. So, It is either 1389D9238 or c793-sk2. So try plotting the database point. Hope this helps :)
The area in which the right angle was at before. the angle nor the triangle changes
A bc to find the ratio u have to divide them for how much 1 would be