Question
Mathematics Question on introduction to three dimensional geometry
What is the perpendicular distance of the point P(6, 7, 8) from xy-plane?
A
8
B
7
C
6
D
none of these
Answer
8
Explanation
Solution
Let L be the foot of perpendicular drawn from the point P(6, 7, 8) to the xy-plane and the distance of this foot L from P is z-coordinate of P, i.e., 8 units.
Given that, P(6,7,8)
Then the perpendicular distance from xy-plane is the value of z-coordinate
i.e, 8
Therefore perpendicular distance is 8 units