10x10 grid give 100交點
find 1交點on two opposite edges. draw the last line through these 2交點. Make sure not hit any other 交點 or simply pick up 2 corner points of biggest rectangle that is made by two adjacent parallel lines.
find 1交點on two opposite edges. draw the last line through these 2交點. Make sure not hit any other 交點 or simply pick up 2 corner points of biggest rectangle that is made by two adjacent parallel lines.
選擇“Disable on www.wenxuecity.com”
選擇“don't run on pages on this domain”
