Question
FGHJ is a rectangular piece of paper with a perimeter of 138 cm. FG is 51 cm and point K is the mid-point FJ. It is folded along the dotted line as shown in Figure 1. What is the area of the shaded triangle?
2 m

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FGHJ is a rectangular piece of paper with a perimeter of 138 cm. FG is 51 cm and point K is the mid-point FJ. It is folded along the dotted line as shown in Figure 1. What is the area of the shaded triangle?