Question

What is the distance of (1,4) and (5,2)?

Answer 1

`2sqrt(5)`

Explanation:

Plot a line between the points and you can form a triangle. So Pythagoras can be used

Let the direct distance between the 2 points be `d`

The `d =sqrt( [-2]^2+[4]^2)`

`=>d=sqrt(4+16) = sqrt(20)`

`d=sqrt(4xx5)=2sqrt(5)`