Tara needs 36 ft² of material to make her rectangular fence.
How to find the perimeter and total surface area of the rectangle?
To find the perimeter of the rectangular fence:
Perimeter = 2(Length + Breadth)
Where L is the length and
B be the breadth of the rectangle.
Perimeter = 2(4 + 2)
Perimeter = 12 ft
To find the total surface area of the fence:
Surface area = Perimeter x Height
Surface area = 12 x 3 = 36 ft²
She will need 36 ft² of material to make her fence.
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