(Solved): A hole is to be drilled in the plate shown below at point A. The diameters of the bits available ...

A hole is to be drilled in the plate shown below at point $$\mathrm{A}$$. The diameters of the bits available to drill the hole range from 6 to $$54\mathrm{mm}$$ in $$12?\mathrm{mm}$$ increments. Determine the diameter of the largest bit that can be used if the allowable stress at thije hole is not to exceed that of the fillets. Must show all work for full credit.