Star
Star
(OP)
Can you show that the construction produces a 'perfect' five point star?
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RE: Star
John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
RE: Star
R2 should be the side of a pentagone, in that case its value would be R2=2R sin 36°=~1.176 R
But from the construction R2=√(R2+R2/4)=~1.118 R
prex
http://www.xcalcs.com : Online engineering calculations
http://www.megamag.it : Magnetic brakes and launchers for fun rides
http://www.levitans.com : Air bearing pads
RE: Star
http://www.ushistory.org/betsy/flagstar.html
RE: Star
John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
RE: Star
RE: Star
RE: Star
John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
RE: Star
As before R2=√(R2+R2/4)=R√1.25
Now R3=√(R2+(R2-R/2)2)=R√(2.5-√1.25) and this is exactly 2R sin 36° !
However I admit that this is not a very elegant proof, another one based on pure geometry would be much better.
RE: Star
Dik
RE: Star
RE: Star
John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
RE: Star
another day in paradise, or is paradise one day closer ?
RE: Star
another day in paradise, or is paradise one day closer ?
RE: Star
Euclid's Method on Wiki with Animated Gif
Now that we've all finished inscribing our pentagrams, how long until somebody starts screaming "Witches!! Witches!! Witches!!" ?
RE: Star
another day in paradise, or is paradise one day closer ?
RE: Star
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Star
RE: Star
RE: Star
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Star
another day in paradise, or is paradise one day closer ?
RE: Star
What a complete waste of my remaining brain cells!
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Star