Answer:
Here’s one shape that works.
Explanation:
The blue L-shaped figure is one of many solutions.
The area of the long side of the L is 10 cm × 1 cm = 10 cm².
The area of the short side is 1 cm × 1 cm = 1 cm².
The total area of the L is 10 cm² + 1 cm² = 11 cm².