Q1 of 84 Page 28

Write the distance of the point P(2, 3, 5) from the xy-plane.

Given: Points P(2, 3, 5)


To find: the distance of the point P from xy-plane


As we know z = 0 in xy-plane.


The shortest distance of the plane will be the z-coordinate of the point


Hence, the distance of point P from xy-plane is 5 units


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If the distance between the points P(a, 2, 1) and Q(1, -1, 1) is 5 units, find the value of a.