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avatar+67 

If there are two circles with known position and radius, and one (the smaller one) is inside the other, how do I find the distance between their edges?

 

How would I find the length of the drawn line?

 Jul 26, 2021
 #1
avatar+34313 
+1

Note that if the circles had the same center (concentric) , the value would be R1- R2

    But R2 is moved a distance  equal to  the distance between  C2 and C1   this reduces R1-R2   by this amount

 

So the line will be      (R1-R2) -  distance betweenC2 and C1    (sorry...that black R1 should be labelled R2)

 

 

 Jul 26, 2021
 #2
avatar+67 
0

Thanks! I knew it would be something simple like that but I just couldn't figure it out lol

Darry  Jul 26, 2021
 #3
avatar+1496 
+3

Big circle radius => R

Small circle radius => r

Distance between the centers => m

? = n

 

n = R - r - m 

 Jul 26, 2021

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