PDF chapter test TRY NOW
If one litre of paint covers \(10 \ m^2\), how many litres of paint is required to paint the internal and external surface areas of a cylindrical tunnel whose thickness is \(2 \ m\), internal radius is \(6 \ m\) and height is \(25 \ m\).
Answer:
Quantity of paint required to paint the tunnel \(=\) litres