# The area of the rectangular land plot is 80 hectares, the length is 2 km. Calculate its perimeter.

June 26, 2021 | education

| It is known from the condition that the area of the rectangular land plot is 80 hectares, and the length of the plot is 2 km. In order to find the perimeter of a rectangular land plot, we need to know its width.

To do this, we will use the formula for finding the area of a rectangle.

S = a * b;

Let’s translate hectares into km2, it is known that 1 hectare = 0.01 km2.

80 * 0.01 = 0.8 km2.

0.8 = 2 * b;

b = 0.8: 2;

b = 0.4 km section width.

We are looking for the perimeter by the formula:

P = 2 (a + b) = 2 (2 + 0.4) = 2 * 2.4 = 4.8 km perimeter of the rectangle.

Answer: 4.8 km.

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