Question

Crystal wants to put a fence around her vegetable garden. Her garden is 5 ft wide and 4 ft long. She plans to put a post at each corner and at every foot. How many fence posts will Crystal need?

Answer 1

18 fence posts.

Explanation:

The dimensions of the garden are given as :

Length = 5 feet

Width = 4 feet

As Crystal plans to put a post at each corner and at every foot, so we will find the perimeter of the rectangle or fence.

Perimeter =
`2(5+4)`

= 2*9 = 18 feet

So, 18 fence posts will be required.

Answer 2

Perimeter of the fence is 2(l + w) = 2(5 + 4) = 2(9) = 18.
He will require 18 fence posts.