Noah built a fenced dog run that is 8 yards long and 6 yards wide.He placed post at every corner and every yard along the length and width of the run.How many post did he use?
1 answer
There are 4 posts at the corners. For the length, posts needed at 2, 3, 4, 5, 6, and 7. For the width, posts needed at 2, 3, 4, and 5. Multiply internal posts by 2 and add them up.