1,360 cm^2
Please just trust me, this took me a long amount of time to solve.
Basically this question is asking for the surface area. Just find the area of each face in the figure. Thats what I did.
Keep in mind that if the figure is composite and difficult like this, I separated it into 2 prism in this case.
I REALLY HOPE THIS HELPS
PLEASE SAY IF MY ANSWER IS CORRECT
-SpaceMarsh