The length of the rectangular field is 4 km 300 m, and its width is 1 km 600 m less. Find the area of the field.

1) First of all, we find the width of the rectangular field, provided that it is 1 km 600 m less than the length equal to 4 km 300 m:

4 km 300 m – 1 km 600 m = 2 km 700 m.

2) The area of the rectangle is calculated by the formula:

S = a * b.

Let’s translate into m:

4 km 300 m = 4300 m, and 2 km 700 m = 2700 m.

Let’s substitute these values into the formula:

S = 4300 * 2700 = 11610000 m2 = 1161 ha. Since 1 ha = 10,000 m².