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-   -   Do I use the P=2l+2w with another formula (https://www.askmehelpdesk.com/showthread.php?t=202197)

  • Apr 4, 2008, 08:34 AM
    idnof
    Do I use the P=2l+2w with another formula
    An indoor physical-fitness room consists of a rectangular region with a semicircle on each end . The perimeter of the room is to be a 200-meter running track. What measurements will produce a maximum area of the rectangle?
  • Apr 4, 2008, 03:34 PM
    galactus
    Do you have any other dimensions you forgot? Just checking.

    The perimeter is

    The area is

    You could solve P for y and sub into A, then differentiate, set to 0 and solve for r.

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