Calculating Volume of Intersection for 3 Balls with Different Centers

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SUMMARY

The discussion focuses on calculating the volume of intersection for three spheres (balls) with radii of 2 and centers at (1,0,0), (0,1,0), and (0,0,1). A participant suggests translating and rotating the coordinate system to simplify the problem, allowing the first sphere to be centered at the origin (0,0,0). This method preserves volume and facilitates the calculation of the intersection volume.

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  • Understanding of geometric transformations, specifically translation and rotation.
  • Familiarity with the mathematical concept of volume in three-dimensional space.
  • Knowledge of sphere equations and their properties.
  • Basic skills in coordinate geometry.
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mccoy1
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Homework Statement


If i have 3 balls of radii =2 and centres =(1,0,0),(0,1,0) and (0,0,1). Find the volume of the intersection of the three balls.


Homework Equations





The Attempt at a Solution


The only method i know only works when the first ball has a centre at (0,0,0) and the second has the centre at x-xis. But these three balls have their centres at each axis. What can I do? Thank you guys.
 
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Hi mccoy1! :smile:

Maybe you can translate and rotate the space a bit such that the three balls do satisfy your conditions. And since translations and rotations preserve voluma, we can do this.

So, first, try to translate the space such that one vector ends up in (0,0,0).
 
micromass said:
Hi mccoy1! :smile:



So, first, try to translate the space such that one vector ends up in (0,0,0).

It makes sense, but how do I do just that? I haven't learn that yet to be honest. I'll google it in a meanwhile.
Thanks for the tip.
 

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