(Solved): Structural member AB is to be supported by a strut CD. Determine the smallest length CD may have, ...

Structural member $$AB$$ is to be supported by a strut $$CD$$. Determine the smallest length $$CD$$ may have, and specify where $$D$$ must be located for a strut of this length to be used. Take $$x=90\mathrm{mm}$$. (Round the final answers to four decimal places.) The smallest length $$CD$$ may have is ( $$\mathrm{mm}$$. The coordinates of point $$D$$ are ( $$?$$, $$\mathbf{x}$$, and ( ) $$\mathrm{mm}$$.