Jika diameter tabung dengan tinggi tabung 28 cm.berapa cm3 volume tabung

t = d = 2r = 28
r = 28/2 = 14

V = πr²t
= 22/7 × 14² × 28
= 22 × 196 × 4
= 17248 cm³

v = phi × 14 × 14 × 28
v = 22/7 × 14 × 14 × 28
v = 22 × 2 × 14 × 28
v = 17.248 cm3