#### Answer

12,800 $m^{2}$

#### Work Step by Step

Find the area of the rectangle.
A=bh
A=60(120)
A=7200
Find the area of the triangle.
To find the base of the triangle, subtract 40 from 120.
120-40=80
To find the height of the triangle, subtract 60 from 200.
200-60=140
A=$\frac{1}{2}$bh
A=$\frac{1}{2}$(80)(140)
A=5600
Add the two areas together.
7200+5600=12,800