2. Example Exercise II

The decorative block shown in Fig. is made of two solids  a cube and a hemisphere. The base of the block is a cube with edge \(5 cm\), and the hemisphere fixed on the top has a diameter of \(4.2 cm\). Find the total surface area of the block. (Take \(\pi=\frac{22}{7}\)

 

 

Total surface area of the block \(=\) \(cm^2\)