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If the hall is 6 1/2 feet long,

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If the hall is 6 1/2 feet long, [#permalink] New post 12 Jun 2018, 09:30
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Attachment:
plan.jpg
plan.jpg [ 44.16 KiB | Viewed 111 times ]


The figure above shows the plan for the ground floor of a house. The thickness of the walls should be ignored in answering the questions. The dimensions are in feet, and each region is rectangular.


If the hall is\(6 \frac{1}{2}\) feet long, what is perimeter, in feet, of the porcharea?

A. 18

B. 19

C. 20

D. 21

E. 22
[Reveal] Spoiler: OA

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Re: If the hall is 6 1/2 feet long, [#permalink] New post 02 Jul 2018, 20:21
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Carcass wrote:
Attachment:
plan.jpg


The figure above shows the plan for the ground floor of a house. The thickness of the walls should be ignored in answering the questions. The dimensions are in feet, and each region is rectangular.


If the hall is\(6 \frac{1}{2}\) feet long, what is perimeter, in feet, of the porcharea?

A. 18

B. 19

C. 20

D. 21

E. 22


Here;

The length of the porcharea = \(19 \frac{1}{2}\) - Length of the Hall - Length of the Kitchen

= \(6 \frac{1}{2}- 6 \frac{1}{2}- 8\)

\(= 5\)

Now the breadth of the poarcharea = \(19 \frac{1}{2} - 14\) \(= 5\frac{1}{2}\)

Now the perimeter of the poarcharea = 2(Length + breadth) ; since it is a rectangle

\(= 2 (5 + 5\frac{1}{2})\)

\(= 21\)
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Re: If the hall is 6 1/2 feet long,   [#permalink] 02 Jul 2018, 20:21
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If the hall is 6 1/2 feet long,

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