[填空题]
A right cylinder, as shown in the diagram, has a base d +-oq3 tm)sej x/ tsq27jfp8pqiameterse 5jo5+kf m.a-fzznn m) +x*-zklo3b of 0.40.4 m and a height of 2.6 o f z)osn+ j-zznl kka5.efm+3bx*-m5m.
1.Write down the radius, in cm, of the base of the cylinder. cm
2.Calculate the area, in $m^2$, of the base of the cylinder. $m^2$
3.Calculate the area, in $m^2$, of the curved surface of the cylinder. $m^2$