volume nya berapa?......

Diketahui :
- Diameter = 7 dm
- Tinggi Tabung = 10 dm
- Tinggi Kerucut = 6 dm

Ditanya : Volume Gabungan = ...?

Penyelesaian :
- Volume Tabung :
V = ¼ × π × d × d × t
V = ¼ × 22/7 × 7 × 7 × 10
V = ½ × 22 × 7 × 5
V = 11 × 7 × 5
V = 77 × 5
V = 385 dm³

- Volume Kerucut :
V = ⅓ × ¼ × π × d × d × t
V = 1/12 × 22/7 × 7 × 7 × 6
V = ½ × 22/7 × 7 × 7
V = 11/7 × 7 × 7
V = 11 × 7
V = 77 dm³

Volume Gabungan :
V = 385 dm³ + 77 dm³
V = 462 dm³

Maaf Kalau Salah

Dik D=7dm (r=3,5 dm)
t.kerucut=6dm
t.tabung=10 dm
Dit v ...?
Jawab
▪v.tabung=vr^2t
3,12×3,5^2×10
3,12×12,25×10
38,22×10
382,2
▪v.kerucut=1/3vr^2t
1/3×3,12×3,5^2×6
1/3×3,12×12,25×6
1/3×38,22×6
1/3×229,32
229,32/3
76,44
Semoga bnr jawabannya