Question
In the figure below, QRST is a square of area 81 cm2. The length of QR is 3 times the length of RU. What is the area of Triangle QRU?
3 m

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In the figure below, QRST is a square of area 81 cm2. The length of QR is 3 times the length of RU. What is the area of Triangle QRU?