Tolong di bantu ya kk​

L tabung = π x r x r + π x d x t

= 3,14 x 10 x 10 + 22/7 x 20 x 14

= 314 + 22 x 20 x 2

= 314 + 440 x 2

= 314 + 880

= 1194 cm²

L 1/2 bola = 1/2 x 4 x π x r x r

= 1/2 x 4 x 3,14 x 10 x 10

= 2 x 314

= 628 cm²

1194 + 628 = 1822 cm²