Answer:
36% of the toast
Explanation:
If you have a piece of toast that is 10 by 10 cm long, then it's area is 100 cm².
If you cut 1 cm off from each edge, then each edge loses 2 cm (for each end). This makes the side lengths 8 cm long, and that makes the area 64 cm².
In total, we lost
cm² of toast (quite a bit).
This means we lost 36% of the toast, since
= 36%.
Please let me know of any mistakes, I'm only 80% sure on this one.
Hope this helped!