[2.5] A square is inscribed in a quarter circle in such a way that two of its adjacent vertices on the rad

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A square is inscribed in a quarter circle in such a way that two of its adjacent vertices on the radius are equidistant from the centre and other two vertices lie on the circumference. If the side of square is √(5/2) cm, then what is the radius (in cm) of the circle?

2.5

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