tolong dong dibantu dengan caranya terimakasih

Please, let me answer your question :)
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Mapel : Matematika
Tentang : Bangun Ruang
Pertanyaan yg diajukan : 2
Pembahasan :

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Diketahui :
- alas = AB = 9 cm
- tinggi alas = 12 cm
- tinggi prisma = CF = 5 cm

Ditanya :
- Volume

V = La x t
V = ½ x a x t x tp
V = ½ x 9 x 12 x 5
V = 9 x 6 x 5
V = 54 x 5
V = 270 cm³

Jawaban : (B)

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Diketahui :
- Bangun : Balok
- p = 50 m
- l = 25 m
- t atau kedalaman = 2 m
- ½ terisi air

Ditanya :
- Volume Air

V = p x l x t
V = 50 x 25 x 2
V = 50 x 50
V = 2500 m³

V Air = ½ x 2500 m³
V Air = 1250 m³

Jawaban : (B)

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Hopefully this is the best for you.

MAKE BRAINLY GREAT AGAIN!!!

Heil Manstein!