luas permukaan tabung tertutup berdiameter 200 dm dan tingggi 50 dm adalah

d= 200 dm > r= 100 dm
t= 50 dm
Ditanya= LP?

LP= 2πr (r+t)
LP= 2 x 3,14 x 100 (100+50)
LP= 2 x 314 (150)
LP= 628 (150)
LP= 94.200 dm²

Hopefully this is the best for you, stay focus and be the best, Buddy :)

diket :
d = 200 dm, maka r = 100 dm
t = 50 dm
dit : Lp =...?
Lp = 2phi. r (r+t)
2 . 3, 14. 100 (100+50)
2 . 3,14 . 100 (150)

2. 314 (150)
628 . 150
94.200 dm