Question

What is the distance formula?(X2+x1)2-(y2+y1)2(X2-x1)+(y2-y1)(Y2-y1)2-(x2-x1)2(X2-x1)2+(y2-y1)2

Answer 1

`{ \red{ \bold{option \: (d)}}}`

`{ \blue{ \tt{ \sqrt{ {(x2 - x1)}^(2) + {(y2 - y1)}^(2) }}}}`

Explanation:

The distance formula is

`{ \green{ \bold{ \sqrt{ {(x2 - x1)}^(2) + ( {y2 - y1)}^(2) }}}}`