Question
PSLE
Mark cut out three identical right-angled triangles. He joined them to form the figure QRST shown. ST = 54 cm and TQ = 45 cm. The perimeter of the figure is 162 cm. Find the area of the figure QRST.
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PSLE
Mark cut out three identical right-angled triangles. He joined them to form the figure QRST shown. ST = 54 cm and TQ = 45 cm. The perimeter of the figure is 162 cm. Find the area of the figure QRST.