... + Rectange: V hỡnh ch nht vi (x1,y1) l ta ca nh trỏi trờn; (x 2,y2) l ta ca nh phi di e Cỏc th tc v hm liờn quan n v trớ tr - Hm xỏc nh GTLN cua mn hỡnh: Function GetMaxX: integer; Function ... (50,50,30,120,50,100); Rectangle (100,100,100,200); Readln; End - Cho HS nờu kt qu - HS tr li - Cu trỳc chung: Giỏo ỏn Tin hc1 - Gi HS nờu ln lt - HS tr li cu trỳc chung ca cỏc th tc Circle, Ellipse, Rectange ... no? - Khi khụng s dng ch ho na thỡ ta phi lm gỡ? Hot ng ca hc sinh - a tr v ct X v - GotoXY(x,y): a tr dũng Y n ct x dũng y ca mn hỡnh bn 2/ Graph: - Cha cỏc hm v th tc liờn quan n ch ho a)...