alleryCoordinates of foot of perpendicular from point (1, 2, 3) to x-axis:
A(0, 0, 3)
B(1, 0, 0)
C(0, 2, 0)
D(1, 2, 0)
Answer & Solution
Correct answer: B. (1, 0, 0)
x-axis: y = z = 0. Foot of perpendicular from any point (x₀, y₀, z₀) to x-axis is (x₀, 0, 0).
For (1,2,3): foot is (1, 0, 0).
Distance = sqrt(4+9) = sqrt(13).
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