To construct a PENTAGON with ruler (straightedge) and compass

[156alexa]

thank you!

[jwm239]

...if segment OC is one unit long, then ray AC is (sqrt 5) units long...hmm...that 5 suggests good things.

[charitou66]

Thanks!!!!

[deadmau96]

Nice... but it really becomes messy with all the circles. Any idea?

[sundar390]

hi friends all uploaded videos is super & very useful

[bigdolot]

This is brilliant - I have checked it algebraically and with trig and it works exactly.

Who came up with this?

bigdolot

[HuiEnXD]

wow. thank youuuu!!!

[rogertobey]

goog video, thanks

[OmegaWolfKodi]

YIKES! BUT good...

no really GOOD

[kdaverikbrendiux]

gracias, me sirvio demasiado... xD

[Filomatia]

I've slowed it down. I hope it's enough.

[georgetroulis]

@Filomatia Thank you for slowing it down. I also know a pentagon method, only that you start by a line. I think your method is better. It really helped me experiment on some things. Thank you for your helpful videos and keep up the good work!:)

[MrLuis5581]

hi do u know how to draw a squre inside a circle with a diameter of 1 1/2 in AutoCad?

[Filomatia]

@MrLuis5581 No, I don't.

[PCGamerPortal]

@MrLuis5581 draw 2 perpedicular diamaters and join the ends?

[ftop087]

..thanks men..

why 3 peoples unlike this ?

[jwm239]

@ftop087 ...problem ended up with hexagons.

[jem017]

thanks



[lili9000c]

way to fast

[rbmaserang]

im so high , this was sweet

[530dbl]

Nice video. But You got to go slower, next time

[GungFuPenguin]

thank you so much! I learned this in a Jiffy!

one thing, could you slow mo it next time? just a bit?

thanks...

[dyingemotion]

when i do it, the gh side is longer than the others

[ravenxclaw]

@dyingemotion whenever i do it, it's a little shorter. well the reason's 'cause our constructions of segment midpoints and etc. aren't precise. =\ have you found a way to get rid of this problem?

[Karakoi]

This helped me alot. Thankkks :D

[AlchemicalAscendancy]

THESE ARE GREAT...