Use a protractor to get an precise angle measurement. Add an additional two-three inches to your width of each portion to permit for that blinds to overlap and provide highest protection.?????????? ????? » ????? ????? ????? » ?????? » ?????? ??? - ???? ????? ?? ??? ??? ??? ???? ???? ??????# ?????? ?? ????????? ??? ?? ?? ??? ?? ???????? ? ?? ???