A rectangular section 20 meters long and 5 meters shorter than the length was surrounded by fences
| August 6, 2021 | education
A rectangular section 20 meters long and 5 meters shorter than the length was surrounded by fences, the posts in which are located at a distance of 5 meters from each other. How many fence posts did it take?
We find how many meters is the width of the rectangular area.
We subtract 5 meters from the length.
20 – 5 = 15 meters.
We find the perimeter of the site.
To do this, multiply the sum of the length and width of the site by 2.
Will be:
2 * (15 + 20) = 2 * 35 = 70 meters.
To find out the number of posts, divide the previously found perimeter by the distance between adjacent posts.
As a result, we get:
70/5 = 14 pillars.
Answer: It took 14 posts for the fence.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
