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Aug 23 2008
By: t3hlazy1 Treasure Hunter 9075 posts
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World's Hardest Easy Geometry Problem - ???

51 replies 177 views Edited Aug 23, 2008

Using only elementary geometry, determine angle x. Provide a step-by-step proof.

You may only use elementary geometry, such as the fact that the angles of a triangle add up to 180 degrees and the basic congruent triangle rules (side-angle-side, etc.). You may not use more advanced trigonomery, such as the law of sines, the law of cosines, etc. There is a review of elementary geometry below.

This is the hardest problem I have ever seen that is, in a sense, easy. It really can be done using only elementary geometry. This is not a trick question.

I can't get the answer. This isn't for school either.
I've been working on it for an hour or so, and can't get it.
Can anyone else get it?
If so, please don't spoil it, just say how you got it.

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Fender Bender
Registered: 07/23/2007
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008
That gives me a headache just looking at it...
Miss me? Come say hi over at my new programming project page, Retro-Pixel Castles.
Hopefully coming to Steam in 2015!
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Uncharted Territory
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008
May we use theroems and postulates?

R.I.P. Paul Harvey (Sept. 4, 1918 - Feb. 28, 2009)


Operation Dentiform Alignment Initiated on Wednesday September 3, 2008
Heavy Enforcers Added on Tuesday October 8, 2008

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I Only Post Everything
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008
i could do it, im just lazy and tired, its basically just adding angles together, and looking at the opposite, and then narrowing it down untill you get X
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Treasure Hunter
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008
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Treasure Hunter
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008

12325 wrote:
i could do it, im just lazy and tired, its basically just adding angles together, and looking at the opposite, and then narrowing it down untill you get X

That's what I thought, butI'm at a dead-end. The site I got it from said it's the hardest easy geometry problem. I don't know. Just bugging me now.

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Splicer
Registered: 08/07/2008
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008
ill do it cause im bored and math is easy to me.......i just had geometry last year...........im just gonna do the answer though cause i don't want to type the proof.........give me like 5 minutes at most
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Treasure Hunter
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008

easyaspie00 wrote:
May we use theroems and postulates?

I don'tthink so.

http://thinkzone.wlonk.com/MathFun/Triangle.htm is the link to where I got it.

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Treasure Hunter
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008

samestory98 wrote:
30

How did you get that?

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Treasure Hunter
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Re: World's Hardest Easy Geometry Problem - ???

Aug 23, 2008

t3hlazy1 wrote:

samestory98 wrote:
30

How did you get that?


its right?

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