SOLUTION: Mary anne is building a fence around the outer edge of a rectangular garden plot that measures 25 feet by 45 feet. She will st the posts 5 feet apart. How many posts will she need?

Question 160903This question is from textbook Geometry An investigation Approach
: Mary anne is building a fence around the outer edge of a rectangular garden plot that measures 25 feet by 45 feet. She will st the posts 5 feet apart. How many posts will she need? This question is from textbook Geometry An investigation Approach

Answer by KnightOwlTutor(293) (Show Source): You can put this solution on YOUR website!
In order to solve this problem you need to determine the perimeter of the rectangle.
the equation of the perimeter of a rectangle is P=2L+2W
W=25 feet
L=45 feet
2(25)+2(45)=50+90=140 ft to determine how many posts she needs you need to take the perimeter and divide by 5 since a post will be set every 5 feet 140/5=28 posts needed.
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