Quandaries
and Queries |
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I understand there is a simple calculation to determine the sides of an octagon when you know the distance across the parallel flats. something like .447 . can you help? Private home owner with octagon skylights see www.domehome.ca for details. thanks |
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Hi Royce, I copied one of the images of your skylight from your website.
In the diagram below L is the distance between the sides and s is the length of a side.
From the diagram
Triangle ABC is a right triangle, and hence from Pythagoras Theorem
Thus
Hence
or
Penny |