A cube-shaped open water tank has each edge equal to
MATHEMATICS · Subjective · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes
Problem
A cube-shaped open water tank has each edge equal to 4.5m. Only the four side faces and the interior base are to be painted with a waterproof coating that costs ₹15 per square metre.
(i) Calculate the total surface area that will actually be painted.
(ii) Determine the total cost of the coating required.