Is the projection of $U$ on $X$-axis (i.e $a$) equal to the projection of $X$ on $U$ (i.e $b$)?

Does this apply to all the vector projections? I can see that there is a symmetry in the intersection point of two projections which implies that both the lengths are same but somewhere, I have a feeling that I have not understood the concept quite clearly.

Can anybody please elaborate on this?

  • $\begingroup$ Look for congruent triangles. $\endgroup$ – amd Nov 26 '18 at 2:59

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