If the projections of a line segment on the x, y and z-axes in 3-dimensional space are 2, …

Question

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:

Accepted Answer

$$\text{Length}=\sqrt{2^2+3^2+6^2}=\sqrt{49}=7.$$

Solutions · 1