Posted by Courtney on Monday, February 15, 2010 at 7:04pm.
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

geometry  Ms. Sue, Monday, February 15, 2010 at 7:11pm
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.

geometry  Courtney, Monday, February 15, 2010 at 7:18pm
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

geometry  Ms. Sue, Monday, February 15, 2010 at 7:32pm
If one length is along the house, then you still have 24 feet to divide among three sides.

geometry  Courtney, Monday, February 15, 2010 at 7:36pm
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

geometry  Ms. Sue, Monday, February 15, 2010 at 7:39pm
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.

geometry  mike, Monday, February 15, 2010 at 7:39pm
i almost thought this was an optimization problem

geometry  Courtney, Monday, February 15, 2010 at 7:53pm
i kinda understand but not sure how i write the problem up
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