volume tabung: tabung berjari-jari alas 7cm dan tingiinya 30cm

v = Πr²t
= 22/7 x 7 x 7 x 30
=4.620 cm³

Volume = π×r^2×t
= 22/7 × 7^2 × 30
= 22/7×49×30
= 22×7×30
= 154 × 30
= 4.620 cm^3