Please help, composite shapes are my weakness so you answering this will help my understanding

Answer: [tex]92224ft^{2}[/tex]
How to find area of Composite Shapes:
Large Top Triangle: (266ft-158ft=108ft) x 354ft = [tex]38232ft^{2}[/tex]
Big Box: 158ft x 354ft = [tex]55932ft^{2}[/tex] - [tex]1940ft^{2}[/tex] = [tex]53992ft^{2}[/tex]
(Subtract Small Triangle: 97ft x 40ft /2 = [tex]1940ft^{2}[/tex])
Total: [tex]92224ft^{2}[/tex]