No 33 pkai cara ya.. ?

Volume Tabung 1 :
V = πr²t
V = 22/7 × (12/2)² × 21
V = 22 × 6 × 6 × 3
V = 132 × 18
V = 2.376 cm³

Volume Tabung 2 :
V = πr²t
V = 22/7 × (14/2)² × 21
V = 22 × 7 × 7 × 3
V = 154 × 21
V = 3.234 cm³

Selisih :
V = 3.234 cm³ - 2.376 cm³
V = 858 cm³

Jawaban : a. 858 cm³

Maaf Kalau Salah

d = 12 maka r = 6
t = 21cm

v tabung 1 = πr²t
22/7×6×6×21 = 2376cm³

d = 14 maka r =7
t = 21cm

v tabung = πr²t
22/7×7×7×21 = 3234cm³

perubahan volume = 3234-2376 = 858cm³➡A