Question
PSLE
David cut out three identical right-angled triangles. He joined them to form the figure RSTU shown. TU = 12 cm and UR = 10 cm. The perimeter of the figure is 36 cm. Find the area of the figure RSTU.
2 m

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PSLE
David cut out three identical right-angled triangles. He joined them to form the figure RSTU shown. TU = 12 cm and UR = 10 cm. The perimeter of the figure is 36 cm. Find the area of the figure RSTU.