You can
put this solution on YOUR website!d = sqrt((x2-x1)^2+(y2-y1)^2)
d = sqrt((3-21)^2+( 8-( -30))^2)
d = sqrt((3-21)^2+( 8-( -30))^2)
d = sqrt((-18)^2+(38)^2)
d = sqrt(324+1444)
d = sqrt(1768)
d = 2*sqrt(442)
So exact distance between the two points is 2*sqrt(442) units.
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