Distance Between Centres of Two Spheres

Rarely Tested

Distance Between Centres of Two Spheres

For centres:

$$C_1(a_1,b_1,c_1)$$

and:

$$C_2(a_2,b_2,c_2)$$

the distance is:

$$C_1C_2=\sqrt{(a_2-a_1)^2+(b_2-b_1)^2+(c_2-c_1)^2}$$

Usage

- Used in all relative-position problems involving two spheres.

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