Question
GHJK is a rectangular piece of paper with a perimeter of 210 cm. GH is 75 cm and point L is the mid-point GK. 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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GHJK is a rectangular piece of paper with a perimeter of 210 cm. GH is 75 cm and point L is the mid-point GK. It is folded along the dotted line as shown in Figure 1. What is the area of the shaded triangle?