I came back from letting my brownies cool to find that some crazy individual had cut themselves a huge rectangular piece out of the middle of my brownie. The piece does not even align with the tray. Is it still possible to use a single vertical cut to cut the remaining brownie area into two pieces of equal area?
If not, prove why not. If it's possible, how can you do it?
Your answer seems reasonable.
Find out if you're right!