The length of the rectangle is 6 cm and the width is 2 cm, which is equal to 1/3 the area of this triangle.

Knowing the length and width of this figure, we find out the area of the rectangle. To do this, you need to multiply the length by the width.
1) 6 cm * 2 cm = 12 cm2.
The fraction 1/3 tells us that the area of the figure must be divided into three equal parts, and then we can find out how many square centimeters one such part occupies, that is, 1/3 of the field area.
2) 12/3 = 4 cm2.
To summarize: the third part of the area of this field is four square meters.