The perimeter of the figure is P = 47.42 units.
How to find the perimeter?
The perimeter is the total length around the figure.
Here we can see:
One side of 6 units.
Two sides of 16 units.
One half-circle of diameter of 6 units.
The circumfernce of that half circle of diameter of 6 units is:
c = (3.14*6)/2 units = 9.42 units
Then the total perimeter of the figure is:
P = 6 units + 2*16 units + 9.42 units
P = 47.42 units.