Utilize a protractor to have an exact angle measurement. Increase a further two-3 inches on the width of each part to permit for the blinds to overlap and supply maximum protection.# ???? ??? ???? ???????? ?? ?? ??? ??? ????? ??? ?? ??? ?? ??? ????? ???? ?????? ??????_????? : ??? ?????? : ?? ?? ???? ??? ??? ?? ?? ??? ??? ?? ????? ???? ?? ?? ???? ??