answer this pls. what is the perimeter of ABCD

Answer:
Perimeter of the figure= 39 units
Step-by-step explanation:
[tex]ABCD[/tex] is a parallelogram, where AB=9 and BC=10
A parallelogram has its opposite sides equal and parallel.
AB=CD=9 units
BC=AD=10 units
Perimeter of any figure is the total measure of its all sides:
Perimeter of the given parallelogram:
[tex]2*(AB+BC)\\\\ =2* (9+10)\\\\=2*19\\\\=39\\\\[/tex]
Perimeter of the figure is '39' units.