In the quadrilateral , the length of is 11 cm, the length of is 7 cm, the length of is 9 cm and the length of is 3 cm. Both and are 90°.
What is the area of the quadrilateral PQRS?
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30,\text{cm}^2
48,\text{cm}^2
50,\text{cm}^2
52,\text{cm}^2
60,\text{cm}^2
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Junior Kangaroo 2019 (2019)
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