From the given information, A is a point with co-ordinates (3, -2, 3).
If you consider the projection of A(3, -2, 3) on the XY-plane is H(3, -2, 0) where the z-coordinate will not exist on XY-plane.
Similarly projection of A(3, -2, 3) on the YZ-plane is T(0, -2, 3) where the x-coordinate will not exist on YZ-plane.
The projection of A(3, -2, 3) on the XZ-plane is T(3, 0, 3) where the x-coordinate will not exist on XZ-plane.
Now, the distance between A and XY-plane = Distance between points A&H
Distance between two points is given by
Using this formula,
Distance of point A from XY
Distance of point A from YZ