Respuesta :
Find the length of the field first. To do this, write a formula for the perimeter, P, of the field: P = 210 ft = 2(45 ft) + 2L.
Then 2L = 210 - 90 = 120, and L = 60 (feet).
The area of the field is thus WL = (45 ft)(60 ft) = 2700 sq ft
Then 2L = 210 - 90 = 120, and L = 60 (feet).
The area of the field is thus WL = (45 ft)(60 ft) = 2700 sq ft
The area of the field in square feet is equal to 2700 sq ft.
We have,
A rectangular field is 45 feet wide and is enclosed by 210 feet of fencing.
We have to determine the length of the field first.
What is the write a formula for the perimeter, P, of the field is,
P = 210 ft
= 2(45 ft) + 2L.
Then 2L = 210 - 90 = 120, and
L = 60 (feet).
What is the area of the rectangle?
Area of rectangle=height × base
The area of the field is thus
WL = (45 ft)(60 ft)
= 2700 sq ft
The area of the field in square feet is equal to 2700 sq ft.
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