JEE Main 2013 — Three Dimensional Geometry Question with Solution
JEE Main 2013 (25 Apr Online)
Question
Let be a triangle with vertices at points , B and in three dimensional space. If the median through is equally inclined with the axes, then is equal to:
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Since is the median

Now, dR's of AD is Also, are 's where and Now, and and

Now, dR's of AD is Also, are 's where and Now, and and
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This is a previous-year question from JEE Main 2013, covering the Three Dimensional Geometry chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.