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Question: Answered & Verified by Expert
If the projections of a line segment on the $x, y$ and $z$-axes in 3-dimensional space are 2, 3 and 6 respectively, then the length of the line segment is :
MathematicsThree Dimensional GeometryJEE MainJEE Main 2013 (23 Apr Online)
Options:
  • A
    12
  • B
    7
  • C
    9
  • D
    6
Solution:
2751 Upvotes Verified Answer
The correct answer is:
7
Length of the line segment
$$
=\sqrt{(2)^2+(3)^2+(6)^2}=7
$$

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