C$.$

i$.$ For each polygon in your sketch, create a $.$txt file with a sensible name in your BlueJ project and edit it to add the relevant polygon coordinates. Use one commaseparated coordinate pair per line. Do not use spaces, except for a newline to end a line. E$.$g$.,$ the file contents might include:

$1,2$

$20,30$

$45,99$

representing coordinates $(1,2),(20,30)$ and $(45,99).$

If you are using BlueJ $5,.$txt files in a project are visible in the main window, otherwise they are only visible in the project directory.

ii$.$ In your Solution Document, explain the files you have created to your tutor.