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a dog trainer has 104ft of fencing that will be used to create a retangular work area for dogs. If the trainer wants to enclosed an area of 532ft what will be the dimensions of the work area?

1 Answer

6 votes
Answer:
36 ft by 16 ft
Explanation:
To solve this problem, you need to find dimensions of a rectangle such that the perimeter is 104 ft and the area is 576 ft. The perimeter is twice the sum of length and width, so the sum of length and width is 52 ft.
The area is the product of length and width, so if w represents the width, we have ...
w(52 -w) = 576
w² -52w = -576 . . . . . eliminate parentheses, multiply by -1
w² -52w +26² = 26² -576 . . . . . . complete the square
(w -26)² = 676 -576 = 100
w = 26 ±√100 = {16, 36}
If the width is the short dimension, it is 16 feet. Then the length is 36 feet. Let me know if I’m right
User Arturs
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