Question

find the distance between A(-1,2) and B(3,4)​

Answer 1

(2,3) and (4,1) 

x1=2, y1=3 and x2=4,y2=1

now under root

/(x2-x1) (y1-y2)

/(4-2) (3-1)

/2*2

=2ans

Answer 2

Answer:

$\sqrt{ {( - 1 - 3)}^{2} + \sqrt{ {(2 - 4)}^{2} } }$

$\sqrt{16 + 4}$

$\sqrt{20}$