A rectangular section 20 m long and 5 m shorter than the length was surrounded by a fence, the posts
| December 28, 2020 | education
A rectangular section 20 m long and 5 m shorter than the length was surrounded by a fence, the posts in which are at a distance of 5 m from each other. How many fence posts did it take?
Find the perimeter of the fence
20 + 20 + (20-5) + (20-5) = 70 meters
70/5 = 14 pillars
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