The perimeter of a rectangular enclosure in which bears like to play is 200m.

The perimeter of a rectangular enclosure in which bears like to play is 200m. Find the area of the enclosure if its width is 40 m.

The first step is to calculate what the length of the enclosure is, knowing that the perimeter is 200 meters and the width is 40 meters.

(a + 40) * 2 = 200;

a + 40 = 200/2;

a + 40 = 100;

a = 100 – 40;

a = 60.

Let’s calculate what the area of the enclosure is, knowing that the length is 60 meters and the width is 40 meters. S = a * b, where a is the length and b is the width.

S = 40 * 60 = 2400 m².

Answer: 2400 m².