Question

What did I do wrong in solving the surface area for this composite figure?

Answer 1

The shape is here then I'll post my work.

Answer 2

First I solved for the upper shapes surface area which I got 416 then the smaller bottom shapes surface area I got 160 and added them up to be the total of 576.

However, these are my only answers:

256
384
512
544

Answer 3

Ooo it's a pi pie! :O that looks tasty!

Answer 4

the formula I used is SA = 2 x l x w + 2 x l x h + 2 x w x h