Answer: You need to grap a square where each side has 10 units in the grid.
Explanation:
We know that each square has a side lenght of 0.1mm
Each unit in the grid represents 0.01mm
Then 10 units in the grid will represent 10*0.01 mm = 0.1mm.
Then the square face will be writen a square with a lenght of 10 units.