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PS: three sides of a triangle

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Intern
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PS: three sides of a triangle [#permalink]

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New post 13 Oct 2008, 06:27
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Question

If 3 and 8 are the two sides of a triangular region, which of the following can be the length of the third side?
I 5
II 8
III 11

a II only
b. III only
c. I and II only
d II and III only
e. I, II and III only

Now.. i got so confused with this one, that I could not even mark an answer

According to me, both I and III are possible... where as the correct answer option is a. II only...

Please help

Kudos [?]: 36 [0], given: 0

Senior Manager
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Joined: 04 Aug 2008
Posts: 374

Kudos [?]: 36 [0], given: 1

Re: PS: three sides of a triangle [#permalink]

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New post 13 Oct 2008, 06:31
hbs2012 wrote:
Question

If 3 and 8 are the two sides of a triangular region, which of the following can be the length of the third side?
I 5
II 8
III 11

a II only
b. III only
c. I and II only
d II and III only
e. I, II and III only

Now.. i got so confused with this one, that I could not even mark an answer

According to me, both I and III are possible... where as the correct answer option is a. II only...

Please help


two shorter sides added up together must be longer then the remaining third side

so 3 5 and 8 they are equal but not longer eliminate it
3 8 and 11 eliminate
3 8 8 here any two sides are longer then the remaining - OK
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Kudos [?]: 36 [0], given: 1

Intern
Intern
avatar
Joined: 25 May 2008
Posts: 43

Kudos [?]: 36 [0], given: 0

Re: PS: three sides of a triangle [#permalink]

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New post 13 Oct 2008, 07:22
Thanks...
I just got confused with the concept.. I think

I was thinking that the sum of two sides can be equal to or greater than the third one


thanks for your help.. tht clears it!

Kudos [?]: 36 [0], given: 0

Re: PS: three sides of a triangle   [#permalink] 13 Oct 2008, 07:22
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PS: three sides of a triangle

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