The width of the rectangle is one third of its length, and the perimeter is four meters. What is the area of the rectangle?

By the condition of the problem, the width of the rectangle is one third of its length, then we will take the width as one part, and the length, respectively, will be equal to 3 parts.

The perimeter of the rectangle is 4 m.Let’s find the sum of the two sides of the rectangle by dividing its perimeter by 2:

4: 2 = 2.

Thus, we find how many meters is one part, if 4 parts are equal to 2 meters:

2: 4 = 0.5.

So, the width of the rectangle is 0.5 m.

Find the length of the rectangle: 0.5 * 3 = 1.5 (m).

Now let’s calculate the area of ​​a rectangle by the product of its two sides:

S = 0.5 * 1.5 = 0.75 (m²).

Answer: the area of ​​the rectangle is 0.75 m².