sebuah tabung mempunyai tinggi 2 kali diameternya.berapa liter isi tabung jika jari jarinya 70cm?

r = 70 cm
  = 7 dm

t = 2 x D
  = 2 x 2 x r
  = 4 x 7 dm
  = 28 dm

Volume = π.r².t
V = 22/7 x 7 x 7 x 28
V = 22 x 7 x 28
V = 4.312 dm³
V = 4.312 Liter

Bab Bangun Ruang
Sekolah Dasar Kelas VI

t = 2 x ( 2 x r )
= 2 x ( 2 x 70 )
= 2 x 140
= 280 cm

V = phi x r x r x t
= 22/7 x 70 x 70 x 280
= 22 x 10 x 70 x 280
= 15400 x 280
= 4.312.000 cm3 >> 4.312 liter