Two hemispherical domes are to be painted as shown in the adjoining figure. If the circumference...

Two hemispherical domes are to be painted as shown in the adjoining figure. If the circumferences of the bases of the domes are \( 17.6 \mathrm{~cm} \) and \( 70.4 \) \( \mathrm{cm} \) respectively, then find the cost of painting at the rate of \( ₹ 10 \) per \( \mathrm{cm}^{2} \).