# What is the distance between #(8, 6, 2) # and #(0, 6, 0) #?

##### 1 Answer

Jan 27, 2016

#### Explanation:

Let the length of the strait line be r

You can consider the points as a combination of triangles. First you work out the projection of the line on to the xy plain (the adjacent) using Pythagoras. You then work out the related triangle for the z plane again using Pythagoras where r is the hypotenuse (the line). You finish up with a 3 dimensional version of the standard form

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Given: