Question
PSLE
Charlie cut out three identical right-angled triangles. He joined them to form the figure CDEF shown. EF = 6 cm and FC = 5 cm. The perimeter of the figure is 18 cm. Find the area of the figure CDEF.
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PSLE
Charlie cut out three identical right-angled triangles. He joined them to form the figure CDEF shown. EF = 6 cm and FC = 5 cm. The perimeter of the figure is 18 cm. Find the area of the figure CDEF.