1. (2 points) Can a $10 \times 10$ grid square be cut into 7 figures of equal perimeter? Answer: Yes.
Solution: Here is one of the possible examples, of course, there can be others.

![](https://cdn.mathpix.com/cropped/2024_05_06_f3802874779b2cbb336bg-4.jpg?height=637&width=663&top_left_y=401&top_left_x=114)