Thank you for the three-dimensional problem of math problems in grade three! The detailed process must be adopted!
As can be seen from the figure, this figure consists of a cone and a cylinder, so its surface area is: S total =S cone +S cylinder +S bottom, that is, S total = rI+2 RH+r square, that is, = r(l+2h+r), that is, = 2 (1612x2).