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Right triangle

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Senior Manager
Senior Manager
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Joined: 16 Apr 2009
Posts: 252
Schools: Ross
Followers: 1

Kudos [?]: 18 [0], given: 10

GMAT Tests User
Right triangle [#permalink] New post 14 Jul 2009, 13:18
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Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
What is the length around the exterior of a right triangle with sides 9,10, and x?
[Reveal] Spoiler:
19+ sq rt 181

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Senior Manager
Senior Manager
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Joined: 25 Mar 2009
Posts: 305
Followers: 6

Kudos [?]: 56 [0], given: 6

GMAT Tests User
Re: Right triangle [#permalink] New post 14 Jul 2009, 13:25
The solution to the problem assumes the sides given are the LEGS of the triangle, not the hypotenuse. Use Pythagorean Theorem to solve for the hypotenuse, c:

9^2 + 10^2 = c^2
c = \sqrt{181}

Perimeter = 9 + 10 + sqrt(181)
Senior Manager
Senior Manager
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Joined: 16 Apr 2009
Posts: 252
Schools: Ross
Followers: 1

Kudos [?]: 18 [0], given: 10

GMAT Tests User
Re: Right triangle [#permalink] New post 15 Jul 2009, 17:54
Thanks for the reply..

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Keep trying no matter how hard it seems, it will get easier.

Re: Right triangle   [#permalink] 15 Jul 2009, 17:54
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