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Triangles sides are

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Intern
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Triangles sides are [#permalink] New post 13 Oct 2017, 11:08
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Question Stats:

50% (00:25) correct 50% (00:29) wrong based on 4 sessions
Triangle sides are 3 and 4.

Quantity A
Quantity B
possible value of the third side
5


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.



Hi, I'm confused :cry, when to use Pythagorean theorem in comparison question. For example:
can we go ahead and test these values to proof it's a right angle so the answer is C or the answer is D because we don't know it's a right triangle unless it's given?
[Reveal] Spoiler: OA

Last edited by Carcass on 14 Oct 2017, 01:52, edited 1 time in total.
Edited by Carcass
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Re: Triangles sides are [#permalink] New post 13 Oct 2017, 12:43
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plz read -

rules-for-posting-please-read-this-before-posting-1083.html#p1782

Always ask in the relevant section. Use the complete question.Mentioned the source

I have edited but kindly share the full and complete question
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Re: Triangles sides are [#permalink] New post 13 Oct 2017, 12:55
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PS: the length of the third must be less than the sum of the other two sides

and greater than the subtraction of the other two sides.

In the ques we have possible values -

4-3 < length of third side < 4+3

i.e 1 < length of third side < 7

Hence option is D
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Re: Triangles sides are [#permalink] New post 13 Oct 2017, 13:30
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Thank you for your feedback, I wasn't aware of these rules. I'll make sure to follow it in the future.
Can I conclude from your answer is that if it's not stated or implied that the triangle is right triangle I have to follow triangle inequality theorem? difference<length<sum
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Re: Triangles sides are [#permalink] New post 14 Oct 2017, 04:44
f4h6 wrote:
Thank you for your feedback, I wasn't aware of these rules. I'll make sure to follow it in the future.
Can I conclude from your answer is that if it's not stated or implied that the triangle is right triangle I have to follow triangle inequality theorem? difference<length<sum



it's a properties of triangle not a formula, this will give you no. of possible sides. You can use this properties to find if a triangle is possible or not
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Re: Triangles sides are   [#permalink] 14 Oct 2017, 04:44
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