52 A5 \sqrt{2} \mathrm{~A}52 A
52 A\dfrac{5}{\sqrt{2}} \mathrm{~A}25 A
52 A\dfrac{\sqrt{5}}{2} \mathrm{~A}25 A
25 A\dfrac{\sqrt{2}}{5} \mathrm{~A}52 A