[填空题]
A water storage tank h3hpy 1 0aoz4e8xw6 hdx yx.b5was a cml :z29to a s k)fbux(u7xr5q97j-krcylindrical shape. The diameter of the base of the tank is 0.5680.568 m. The height of the tank is 0.8550.855 m. This is shown in the following diagror 7qf(x7aj bul2t r zk)scux- 9m:59kam.
1.Write down the radius, in m, of the base of the tank. m
2.Calculate the area of the base of the tank. $m^2$
George is going to paint the curved surface and the base of the water storage tank.
3.Calculate the area to be painted. $m^2$