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# Right triangle

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Manager
Joined: 16 Apr 2009
Posts: 219
Schools: Ross

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14 Jul 2009, 14:18
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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
Joined: 25 Mar 2009
Posts: 294
Re: Right triangle [#permalink]

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14 Jul 2009, 14:25
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)
Manager
Joined: 16 Apr 2009
Posts: 219
Schools: Ross
Re: Right triangle [#permalink]

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15 Jul 2009, 18:54
Thanks for the reply..

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This is not a quality discussion. It has been retired.

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Re: Right triangle   [#permalink] 15 Jul 2009, 18:54
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# Right triangle

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