What is the distance between (3, –1, 1) and (–2, 0, 1) ?

2 Answers
Feb 19, 2016

sqrt26

Explanation:

Pythagorean Theorem (3D version)

sqrt{(3 - (-2))^2 + (-1 - 0)^2 + (1 - 1)^2} = sqrt26

Feb 19, 2016

sqrt(26)~~5.099

Explanation:

Using Pythagorean Theorem (in 3D)
color(white)("XXX")d=sqrt((Delta x)^2+(Delta y)^2+(Delta Z)^2)

color(white)("XXXx")=sqrt((3-(-2))^2+(-1-0)^2+(1-1)^2))

color(white)("XXXx")=sqrt(25+1+0) = sqrt(26) ~~5.099