tentukan volume air dalam bak tersebut

MAPEL = MATEMATIKA
KELAS = 9
BAB = BRSL

diketahui =
jari jari = 21cm
tinggi tabung = 50cm

ditanya =
V. air dalam bak??

V. tabung = πr²t
= 22/7 × 21 × 21 × 50
= 22 × 3 × 21 × 50
= 69300 cm³

V. ½bola = 2/3πr³
= 2/3 × 22/7 × 21 × 21 × 21
= 2 × 22 × 7 × 3 × 21
= 44 × 441
= 19404 cm³

V.air =
= 69300 + 19404
= 88704 cm³

semoga membantu