Respuesta :
Answer:
17m
Step-by-step explanation:
Add up 4m and 4.5m. 8.5
Multiply that number by 2. 17
As per the perimeter of a rectangle, I need to buy a fence of length
17 m.
What is the area of a rectangle?
The total area covered by the rectangle is called the area of the rectangle.
If the rectangle has a length of 'a' units and the width of 'b' units, then the area of this rectangle is = 'ab' square units.
What is the perimeter of a rectangle?
The perimeter of a rectangle is the total length of it's outline.
If the rectangle has a length of 'a' units and the width of 'b' units, then the perimeter of this rectangle is = 2(a + b) units.
Given, the dimension of the lawn is 4 m x 4.5 m.
Therefore, the area of the lawn is
= 4 m x 4.5 m
= 18 m².
Now, the perimeter of the lawn is
= 2(4 + 4.5) m
= 2 × 8.5 m
= 17 m
Therefore, I need to buy a fence of length 17 m.
Learn more about perimeter of a rectangle here: https://brainly.com/question/5035611
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