Which shapes would I use to figure out the total surface area of this composite shape?

[mathfre22]

I am currently working on a problem where I have to figure out the formula(s) to find the total surface area of this composite figure. I have to find the individual areas of the shapes in the figure but I am having a hard time figuring out the shapes. I posted the composite figure and the answers that I already picked for the shapes. Can someone please tell me what the shapes are?

Here is the composite figure:



Here is the shapes question that I tried answering:

 

[lev888]

Let's consider a simpler example: perimeter of a half circle. What basic shapes are involved here? How does their perimeter/length contribute to the perimeter of a half circle?