To find the fencing that I need, if M used 400 ft of fencing to enclose a rectangular area in his backyard and I wants to enclose similar area with two times of length and width.
Answer to Problem 10CCSR
800 ft& option F is correct.
Explanation of Solution
Given information:
M used 400 ft of fencing to enclose a rectangular area in his backyard and Iwants to enclose similar area with two times of length and width.
Calculation:
Let
Then the length and width of I rectangular area is
Now given that the perimeter of M’s rectangular area in his backyard is 400 ft. That is,
Now the perimeter of I rectangular area is,
Hence option F is correct.
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