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Equations for finding points on a circle circumference  TOPIC_SOLVED

Hi

In this diagram, the points with a green dot are known and the red ones unknown. Could someone explain what formula I need to determine the red dotted points?

Image

Thanks
by Bigus
on Thu Jul 18, 2013 8:45 pm
 
Forum: Trigonometry
Topic: Equations for finding points on a circle circumference
Replies: 3
Views: 1122

Re: Equations for finding points on a circle circumference  TOPIC_SOLVED

Hi Ahh, so the technique is to use pythagoras - I should have thought of that! I have extended the formula to deal with the fact that the origin (a,b) of my circles are not 0,0 so to get the y coord for my point C I am using: y = b +/- sqrt{r^2 - (L-K)^2} (where points on my circle diagram a...
by Bigus
on Fri Jul 19, 2013 12:35 pm
 
Forum: Trigonometry
Topic: Equations for finding points on a circle circumference
Replies: 3
Views: 1122

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