Q. 345.0( 2 Votes )

# L is the foot of A. (3, 0, 0)

B. (0, 4, 0)

C. (0, 0, 5)

D. none of these

Answer :

As x-axis lies on xy plane and xz.

So its distance from xy and xz plane is 0.

∴ By basic definition of 3-D coordinate we can say that y-coordinate and z–coordinate are 0.

As, perpendicular is drawn from point P(3, 4, 5) to x-axis , so distance of point of intersection of this line from yz plane remains the same.

∴ x-coordinate of the new point(L) = 3

Or we can say that coordinates of L are (3, 0, 0)

Hence, option(A) is the only correct choice.

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