Find the distance between (2,1) and (4,3)

Find a if the distance between (a, 2) and (3, 4) is 8.

What is the distance between (-2, -4) and (3, 8) ?

Find the distance between A(2,3) on the line of gradient 3/4 and the point of intersection P of this line with 5x+7y+40=0.

Findthe distance between the point (4,3,-6) and (-2,1,-3)

Find the distance between points A(4,6) and B(4,-2) .

Find the distance between the points (5, 3, -2) and (3, 2, 1).

Find the distance between the points A(2,3,1)a n d\ B(-1,\ 2,\ -3) , using vector method.

Find the distance between the points A(3,2,1), B(-1,2,-3).

Find the distance between the points (0,0) and (3,4)

Find the distance between the line (x+1)/(-3)=(y-3)/2=(z-2)/1 and the plane x+y+z+3=0.