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# If a six-sided polygon has 3 sides of length x + y each, and 3 sides

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Math Expert
Joined: 02 Sep 2009
Posts: 46216
If a six-sided polygon has 3 sides of length x + y each, and 3 sides [#permalink]

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26 Sep 2017, 23:29
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Question Stats:

91% (00:29) correct 9% (00:10) wrong based on 33 sessions

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If a six-sided polygon has 3 sides of length x + y each, and 3 sides of length x – y each, what is its perimeter?

(A) 3x
(B) 3y
(C) 6x
(D) 6y
(E) 6x – 6y

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Senior Manager
Joined: 02 Jul 2017
Posts: 294
GMAT 1: 730 Q50 V38
Re: If a six-sided polygon has 3 sides of length x + y each, and 3 sides [#permalink]

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27 Sep 2017, 07:30
If a six-sided polygon has 3 sides of length x + y each, and 3 sides of length x – y each, what is its perimeter?

Total perimeter = sum of all sides

3 sides have length x+y and remaining 3 sides have length x-y

=> Total perimeter = 3*(x+y)+3*(x-y) = 6x

Target Test Prep Representative
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2570
Re: If a six-sided polygon has 3 sides of length x + y each, and 3 sides [#permalink]

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01 Oct 2017, 12:15
Bunuel wrote:
If a six-sided polygon has 3 sides of length x + y each, and 3 sides of length x – y each, what is its perimeter?

(A) 3x
(B) 3y
(C) 6x
(D) 6y
(E) 6x – 6y

Perimeter = 3(x + y) + 3(x - y) = 3x + 3y + 3x - 3y = 6x

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Re: If a six-sided polygon has 3 sides of length x + y each, and 3 sides   [#permalink] 01 Oct 2017, 12:15
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