A circular fin of inner diameter 20 cm and outer diameter of 26 cm transfers heat from a small motorcycle engine. If the average engine surface temperature is 112 °C, determine the temperature distribution along the fin surface. The thermal conductivity of the fin material is 21 W/m °C and the convective heat transfer coefficient between the fin and the atmosphere is 120 W/m2 °C. Assume an atmospheric temperature of 32 °C.