to find the area, it helps to know all the lengths.
The vertical (V) piece near the 9 equals 2 and the horizontal (H) piece equals 6.
(to find the V piece, I did 10-8; for the H piece I did 15-9)
Next you have to find the area. I find its easiest to split them up into more shapes so I had a big rectangle and the little square piece at the bottom.
The measurements to multiply for the rectangle are 15*8= 120
the measurements for the little square are 9*2=18
Then you add the two numbers together 120+18=138.
The area is 138m