31.Find the area of quadrilateral PQRS shown in the figure:
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32.Find the area of a rhombus whose diagonals are of lengths 10 cm and 8.2 cm.
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33.Find the area of the polygon ABCDE as shown in the figure.
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34.The area of a trapezium shaped field is 480 m2, the distance between two parallel sides is 15 m and one of the parallel side is 20 m. Find the other parallel side.