# Distance between (-7,-3,6) and (-3,5,1)?

Distance between (-7,-3,6) and (-3,5,1)?
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eyiliweyouc
Distance on the x−y plane is $\sqrt{{\left({x}_{2}-{x}_{1}\right)}^{2}+{\left({y}_{2}-{y}_{1}\right)}^{2}}$
Then the distance including the z plane is
$\sqrt{{\left({z}_{2}-{z}_{1}\right)}^{2}+{\left({x}_{2}-{x}_{1}\right)}^{2}+{\left({y}_{2}-{y}_{1}\right)}^{2}}$
Just use substitution to solve.