bantu aku yaa ..soalnya besok udah mau di kumpul....

Please, let me answer your question :)
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Mapel : Matematika
Tentang : Bangun Ruang
Pembahasan :

Diketahui :
- Bangun : Tabung (½)
- t : 12 m
- d : 7 m
- 2/3 diisi air.

Ditanya :
- V

V= ¼ x 22/7 x 7 x 7 x 12
V= 22/7 x 7 x 7 x 3
V= 22 x 7 x 3
V= 154 x 3
V= 462 m³ : 2 = 231 m³

V= 231 x 2/3
V= 2 x 77 = 154 m³

Jadi, yg C jawabannya.

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Heil Manstein!