[填空题]
A water storage tank hn1(v+mt*q jq.r bp(my as ll5gj**p 0 g8x mlgp;ba cylindrical shape. The diameter of the base of the tank is 0.5680.568 m. The height of the tank is 0.8550.85gj80 lp*5gbl *px ;lgm5 m. This is shown in the following diagram.
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. $m^2$