Hello All:
I am a long way from home and my library. I must install a wolmanized plate to a masonry wall, which is sized at twenty-one feet in diameter. Can anyone forward the formulas for either an inscribed or for circumscribed circles? This job may have twenty separate plates to anchor. Thanks.
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Replies
maybe I'm not understanding your question, but the circumference of a circle is ((pi)d), where "d" is the diameter of the circle.
in your case, you know the circumference already, so you solve for the unknown, which is the diameter. d = circumference / pi
for your circle with a 21' circumference, d=6.685' (r=3.343')
if this isn't what you need, I don't know that I can help you...
12build, I'm not certain what's being circumscribed so I'll just spill my guts and hopefully one of these calculators will fit the bill:
Center of Circle given Three Points on the Circumference
Sagitta (Arch Height) given Arc Length and Chord
Miscellaneous Circular Data and Angle Calculators
Circular Arch Calculator
Circumcribed and Inscribed Regular Polygons :
click here to view Diagrams, Formulas and Definitions of the "Widths" of the polygons.
EDIT: A bit more info on Circular Arc Geometry and Layout ... O.K., I think that's it!
Hope one of these helps. Have a good weekend. :)
Edited 6/10/2006 3:02 pm ET by JoeBartok
Edited 6/10/2006 3:03 pm ET by JoeBartok
Edited 6/10/2006 3:03 pm ET by JoeBartok
Edited 6/10/2006 3:10 pm ET by JoeBartok
Edited 6/10/2006 3:41 pm ET by JoeBartok