The width of a rectangular section is 8 times its length, find the area of the section if its perimeter is 144 cm.

First, we express the sum of the length and width of the section from the specified perimeter value.

To do this, divide 144 meters by 2.

Will be:

144/2 = 72 m.

Since we know that the length is in relation to the width, as 8: 1, then the sum of equal parts will be equal to:

8 + 1 = 9.

From this it follows that the width of the section is:

72 * 1/9 = 72/9 = 8 meters.

The length of the section is:

72 * 8/9 = 64 meters.

We find the area.

We multiply the length by the width.

64 * 8 = 512 m2

Answer:

Land area 512 m2