Ratio of squares

A circle is given in which a square is inscribed. The smaller square is inscribed in a circular arc formed by the side of the square and the arc of the circle. What is the ratio of the areas of the large and small squares?

Correct result:

r =  0:0

Solution:

$$\begin{gathered} r_1=1 \\ u=2r_1=\sqrt{2}{a}_1 \\ {a}_1=2\cdot r_1\mathrm{/}\sqrt{2}=2\cdot 1\mathrm{/}\sqrt{2}=\sqrt{2}\doteq 1.4142 \\ {S}_1=a_1^2=1.4142^2=2 \\ {S}_2=a_2^2=0 \\ r=S_1\mathrm{/}{S}_2=2\mathrm{/}0\approx INF=0:0 \end{gathered}$$

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