Answer:
Step-by-step explanation:
To find the perimeter of the figure with side lengths 20 mm, 20 mm, and 16 mm, you add up the lengths of all the sides.
Perimeter = Sum of all side lengths
Perimeter = 20 mm + 20 mm + 16 mm
Perimeter = 56 mm
So, the perimeter of the figure is 56 mm.
