Question

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

Answer 1

Distance =`sqrt99`=`~=9.95.`

Explanation:

WE use the Distance Formula : The distance `d` between two points `(a,b,c)` and `(p,q.r)` is `d=sqrt{(a-p)^2+(b-q)^2+(c-r)^2}.`

In our case, `d=sqrt{(-5-4)^2+(-1+4)^2+(1+2)^2}=sqrt(81+9+9)=sqrt99~=9.95.`