Three-Dimensional-Geometry Question 420

Question: The shortest distance of the point (a, b, c) from the x-axis is

[MP PET 1999; DCE 1999]

Options:

A) $ \sqrt{(a^{2}+b^{2})} $

B) $ \sqrt{(b^{2}+c^{2})} $

C) $ \sqrt{(c^{2}+a^{2})} $

D) $ \sqrt{(a^{2}+b^{2}+c^{2})} $

Show Answer

Answer:

Correct Answer: B

Solution:

Distance from x-axis = $ \sqrt{y^{2}+z^{2}}=\sqrt{(b^{2}+c^{2})} $ .