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In the xy plane.....

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Joined: 06 Feb 2010
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Schools: University of Dhaka - Class of 2010
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In the xy-plane, the vertices of a triangle have coordinates [#permalink]

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28 Oct 2010, 22:18
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Difficulty:

25% (medium)

Question Stats:

93% (01:47) correct 7% (00:06) wrong based on 15 sessions

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In the xy-plane, the vertices of a triangle have coordinates (0,0),(3,3), and (7,0). What is the perimeter of the triangle?
(A) 13
(B) (14)
(C) (16)
(D) (17)
(E) 12+3 root 2

How to draw graph on this?
[Reveal] Spoiler: OA

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Re: In the xy plane..... [#permalink]

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29 Oct 2010, 00:27
Moving to PS sub-forum ...

 ! Please post PS questions in the PS subforum: gmat-problem-solving-ps-140/Please post DS questions in the DS subforum: gmat-data-sufficiency-ds-141/

To answer this question ... all you need is distance between vertices :

(0,0) & (7,0) : 7
(0,0) & (3,3) : $$3\sqrt{2}$$
(7,0) & (3,3) : $$\sqrt{16+9}=5$$

Perimeter = sum of these three sides = $$12 + 3\sqrt{2}$$

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Re: In the xy plane.....   [#permalink] 29 Oct 2010, 00:27
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