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 Subject: "how do we construct golden triangles?" Previous Topic | Next Topic
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shane
guest
Oct-07-08, 09:44 PM (EST)

"how do we construct golden triangles?"

 i find golden triangles interesting. i want to study them closely.sadly, i can't construct one cause all i know is the angular measurement of these golden triangles.how can i find the side measurement of a golden triangle? is there a formula for it? i want to sketch golden triangles in my graphing paper, but i just cant get it...hope you can help me

alexb
Charter Member
2289 posts
Oct-07-08, 11:32 PM (EST)

2. "RE: how do we construct golden triangles?"
In response to message #0

 There are actually two triangle that compete for the title of "golden."36-36-108 and 72-72-36Assume it's the latter you have in mind.In this triangle, if the base is 2 units, the side equals 1/sin(18°).You can verify that sin(18°) = (√5 - 1)/4,Seehttps://www.cut-the-knot.org/pythagoras/cos36.shtml

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