tolong dikumpul besok tolong nomor 11,12,13,14,15 pakai cara pliss

11.
V = ¼πd²t
V = ¼ × 22/7 × 14 × 14 × 10
V = ¼ × 22 × 2 × 14 × 10
V = ¼ × 44 × 140
V = 11 × 140
V = 1.540 dm³

12.
V = ¼πd²t
V = ¼ × 3,14 × 10 × 10 × 50
V = ¼ × 314 × 50
V = ¼ × 15,700
V = 3.925 cm³

13.
Balok :
V = plt
V = 28 × 28 × 20
V = 784 × 20
V = 15.680 cm³

Tabung :
V = ¼πd²t
V = ¼ × 22/7 × 28 × 28 × 20
V = ¼ × 22 × 4 × 28 × 20
V = 22 × 560
V = 12.320 cm³

Gabungan :
V = 15.680 cm³ + 12.320 cm³
V = 28.000 cm³

14.
Tabung 1 :
V = ¼πd²t
V = ¼ × 3,14 × 20 × 20 × 14
V = 62,8 × 5 × 14
V = 314 × 14
V = 4.396 cm³

Tabung 2 :
V = ¼πd²t
V = ¼ × 3,14 × 10 × 10 × 7
V = ¼ × 314 × 7
V = ¼ × 2.198
V = 549,5 cm³

Gabungan :
V = 4.396 cm³ + 549,5 cm³
V = 4.945,5 cm³

15.
Balok :
V = plt
V = 7 × 6 × 5
V = 42 × 5
V = 210 dm³

Tabung :
V = ¼πd²t
V = ¼ × 22/7 × 3,5 × 3,5 × 3
V = ¼ × 22/2 × 3,5 × 3
V = ¼ × 11 × 3,5 × 3
V = ¼ × 33 × 3,5
V = ¼ × 115,5
V = 28,875 dm³

Gabungan :
V = 210 dm³ + 28,875 dm³
V = 238,875 dm³

Maaf Kalau Salah