geometry

Polly decides to use a wall of the house as one sideof the rectangular dog pen. She plans to use the 24 ft. of fencing (1 ft. sections) for the other 3 sides. What are the dimensions ofthe best dog pen for polly's poodle? Explain

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asked by Courtney
  1. I helped you with the last problem. Now it's your turn.

    What do you think are the best dimensions?

    We'll be glad to check your answer.

    posted by Ms. Sue
  2. A = l + w

    the best dimensions would be lenght 10 feet and width 4 feet

    24 - 4 = 20

    20 divided by 2 (lenght) 10
    10 by 10 by 4 = 24

    posted by Courtney
  3. If one length is along the house, then you still have 24 feet to divide among three sides.

    posted by Ms. Sue
  4. 24 divided by 3 (sides) = 8
    8 divided by 2 (sides) = 4

    24 - 4 = 20

    20 divided by 2 (sides) = 10

    10 by 10 by 4 = 24 feet of fencing

    posted by Courtney
  5. You don't need fencing along the wall of the house.

    How about dimensions of 12 by 6, with 12 feet along the house?

    12 + 6 + 6 = 24 feet of fencing.

    posted by Ms. Sue
  6. i almost thought this was an optimization problem

    posted by mike
  7. i kinda understand but not sure how i write the problem up

    posted by Courtney

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