Hitunglah volume bola di bawah ini 10 cm 18 cm 12 cm
Jawaban:
Volume gabungan = 5,730,93 cm³
Penjelasan:
V1 = Tabung
V2 = Kerucut
V1 = π × r² × t
V1 = 3,14 × 12² × 10
V1 = 3,14 × 144 × 10
V1 = 452,16 × 10
V1 = 4.525,16 cm³
t kerucut = 18 – 10
t kerucut = 8 cm
V2 = 1/3 × A × t
V2 = 1/3 × π × r² × t
V2 = 1/3 × 3,14 × 12² × 8
V2 = 1/3 × 3,14 × 12 × 12 × 8 (3 & 12 sama-sama dibagi 3)
V2 = 3,14 × 4 × 12 × 8
V2 = 12,56 × 12 × 8
V2 = 150,72 × 8
V2 = 1.205,76 cm³
V gabungan = V1 + V2
V gabungan = 4.525,16 + 1.205,76
V gabungan = 5,730.92 cm³