Answer:
The total number of posts is 36.
Step-by-step explanation:
It is given that a fence enclosing a rectangular pen 100 feet long and 80 feet wide has a post at each corner and post every 10 feet along the sides.
Total number of posts on corners = 4
Because the distance between each post is 10 feet, so
Total number of posts along side measure 100 feet = 9
Total number of posts along side measure 80 feet = 7
Total number of posts is = 2(9)+2(7)+4 = 36
Therefore the total number of posts is 36.
