A tent is in the shape of a cylinder, surmounted by a conical top. If the height and diameter of the cylindrical part are \(3.5 \ m\) and \(6 \ m\), and slant height of the top is \(4.2 \ m\), calculate the area of canvas used for making the tent. Also, calculate the cost of canvas of the tent at the rate of \(₹ 325\) per \(m^2\). (Use \(\pi =\frac{22}{7})\).
Ans:
The area of the canvas for making the tent \(=\) \(m^2\).
The cost of canvas of the tent \(=\) \(₹\)