If the midpoint of the line segment joining the points $(5, a)$ and $(b, 7)$ is $(3, 5)$,then $(a, b) =$

The distance between the points $(7, 5)$ and $(3, 2)$ is equal to ........... $unit$.

What is the distance of the point $(6, 8)$ from the $x$-axis?

The coordinates of the point dividing internally the line segment joining the points $(4, -2)$ and $(8, 6)$ in the ratio $7 : 5$ are:

Two particles $P$ and $Q$ located at the points with coordinates $P(t, t^3-16t-3)$ and $Q(t+1, t^3-6t-6)$ are moving in a plane. The minimum distance between them in their motion is

If the coordinates of two opposite vertices of a square are $(a, b)$ and $(b, a)$,find the area of the square.