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Omni-MATH / The octagon P₁P₂P₃P₄P₅P₆P₇P₈ is inscribed in a circle, with the vertices around the circumference in the given order. Given that the polygon P₁P₃P₅P₇ is a square of area 5, and the…

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problem

The octagon P1P2P3P4P5P6P7P8P_1P_2P_3P_4P_5P_6P_7P_8 is inscribed in a circle, with the vertices around the circumference in the given order. Given that the polygon P1P3P5P7P_1P_3P_5P_7 is a square of area 5, and the polygon P2P4P6P8P_2P_4P_6P_8 is a rectangle of area 4, find the maximum possible area of the octagon.
Plain-text mathematical notation (without MathML)
The octagon P₁P₂P₃P₄P₅P₆P₇P₈ is inscribed in a circle, with the vertices around the circumference in the given order.  Given that the polygon P₁P₃P₅P₇ is a square of area 5, and the polygon P₂P₄P₆P₈ is a rectangle of area 4, find the maximum possible area of the octagon.
Original LaTeX notation
The octagon $P_1P_2P_3P_4P_5P_6P_7P_8$ is inscribed in a circle, with the vertices around the circumference in the given order.  Given that the polygon $P_1P_3P_5P_7$ is a square of area 5, and the polygon $P_2P_4P_6P_8$ is a rectangle of area 4, find the maximum possible area of the octagon.

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