Question

What is the distance between `(-2,11,4)` and `(1,2,-5)`?

Answer 1

`"displacement:" 13,08 " unit"`

Explanation:

`P_1(x,y,z)" "P_2(a,b,c)`
`Delta x=a-x`
`Delta y=b-y`
`Delta z=c-z`
`Delta x=1-(-2)=3`
`Delta y=2-11=-9`
`Delta z=-5-4=-9`
`"distance="sqrt((Delta x)^2+(Delta y)^2+(Delta z)^2)`

`"distance"=sqrt(3^2+(-9)^2+(-9)^2)`

`"distance:"sqrt(9+81+81)=sqrt171`
`"displacement:" 13,08 " unit"`