- Artemis tanks were 10m wide and 30m tall.
- Cylinder surface Area = (2.pi.r^2^) * (2.pi.r.h) ^[curved area plus top and bottom circles]
- 2 * pi * 5 * 30 ~ 1100m^2^ to paint
- Paint paints about 10m^2^ per Litre paint
- Need 1100 / 10 = 110 Litres of paint
- 1L of paint weighs about 2kg
- 110 Litres of paint weighs about 220kg