Thickness = 1.59 cm 17.40 A 13 cm by 13 cm steel angle with the dimensions shown is attached to a wall with a surface temperature of 600 K. The surrounding air is at 300 K, and the convective heat-transfer coefficient between the angle surface and the air is 45 W/m K. a. Plot the temperature profile in the angle, assuming a negli- gible temperature drop through the side of the angle attached to the wall. b. Determine the heat loss from the sides of the angle project- ing out from the wall. -13 cm