The length of the foot of perpendicular drawn from the point P (3, 4, 5) on y-axis is
The length of the foot of perpendicular drawn from the point P (3, 4, 5) on y-axis is
(A) 10
(B) √34
(C) √113
(D) 5√2
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Let l be the foot of perpendicular from point P on the y-axis. Therefore, its x and z-coordinates are zero, i.e., (0, 4, 0). Therefore, distance between the points (0, 4, 0) and (3, 4, 5) is √(9 +25) i.e., √34 .
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