The expression for working out the total surface area of a cylinder is 2π\(r\)² + 2π\(rh\). \(r\) is the radius of the circular cross-section and \(h\) is the height of the cylinder.

The surface area of a cylinder is the area of each of its faces added together. \(\text{Total~surface~area~of~a~cylinder} = 2 \pi r^2 + \pi d h\) This can also be written as \(\text{Total~surface ...

Find the surface area of the resulting cuboid. Q2. A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. The diameter of the hemisphere is 14 cm and the total height of the ...