Question
PSLE
Howard cut out three identical right-angled triangles. He joined them to form the figure NPQR shown. QR = 10 m and RN = 13 m. The perimeter of the figure is 40 m. Find the area of the figure NPQR.
2 m

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PSLE
Howard cut out three identical right-angled triangles. He joined them to form the figure NPQR shown. QR = 10 m and RN = 13 m. The perimeter of the figure is 40 m. Find the area of the figure NPQR.