Do you know how to bluild a pentagon using only compass and

File: 5gon.png (37KB, 662x561px) Image search: [Google]

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Done

admittedly, if I didn't know sacred geometrical techniques I wouldn't have been able to do this at all.

I don't know any intuitive method to pentagon construction

Dude use a compass.

Make a circle

With the same radious of the circle dp 5 marks in the circle

Then you only have to make it

It's so fucking easy dude

>>8222880
Its about a perfect math pentagon.

ITT: people trying to solve obsolete 3000yo problems

>>8222883
sometimes you need a break from P=NP

just use trigonometry to find length of a diagonal, then construct it

>>8222858
Indeed. I have a rigorous background in Euclidean Geometry. Allow me to show you my construction

>Let ABCDE be a convex regular polygon

That's pretty much it. Go kill yourselves, applied fags.

>>8223008
butthurt that math has no place in real life xD

>>8223011
>Butthurt that nobody wastes their time with constructibility shit anymore.

I see doing constructions in geometry the same way I see 12 year old girls bragging on facebook that they read fucking fiction books.

>Oh look at me I am so smart and special even though I only know the most basic of basic shit.

>>8223018
12 year olds grills are qt

constructions make for a semi fun game http://www.euclidea.xyz/game/

>>8222858
All you need is a straight edge.

>>8223059
The circle one got me stuck. How the hell do you do that shit without inscribing it in a square and making a point at the intersection of the square's diagonals?

>>8223172
draw two secant lines
their perpendicular bisectors meet at the center

>>8223018
Its just a litte game senpai, no need to be mean

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>>8222858
>I needed 5 days to complete it. Really a hard problem. Euclid has my respect.

This is the shit that kept humanity in the dark ages until analytic geometry came about freeing our thinking and enabling science to occur.

>>8223018
>12 year old girls bragging on facebook that they read fucking fiction books

Holy shit! There are children that still read? Maybe there's still hope for humanity.

>>8223302

> Le dark christian age meme
Good liberal. Do not forget to vote for Hillary.

>>8222858

Now build the heptagone !

1. Express sin/cos of 18 degrees as constructible numbers
2. Use various theorems you learnt in grade 7
3. ???

This algorithm works for many konstruktibel problen. Use wessily.

>>8223314
The image he posted is a parody, retard. Try actually reading before you shitpost.