The width of a rectangular piece of land is 80 m less than its length. Find the area if the length
| May 2, 2021 | education
The width of a rectangular piece of land is 80 m less than its length. Find the area if the length of the fence around the site is 800 m.
We find how many meters is the sum of the length and width of the site.
We divide the specified perimeter into 2 parts.
We get:
800/2 = 400 meters.
We determine how many meters the sum of the length and width will be, excluding the difference.
400 – 80 = 320 meters.
From this it follows that the width of the section will be equal to:
320/2 = 160 meters.
In this case, the length of the section will be:
160 + 80 = 240 meters.
We find the area.
We multiply the length by the width.
160 * 240 = 38400 m2
We translate the area into ares.
38400/100 = 384 amu.
Answer: 384 a.
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