# Chapter 10 - Area - 10-1 Areas of Parallelograms and Triangles - Practice and Problem-Solving Exercises - Page 621: 43

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

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