Question
The figure shows a piece of square paper FGHJ folded at two of its corners G and J. Given that ∠HLJ = 81° and ∠GKH = 77°, find ∠GHJ.
3 m

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The figure shows a piece of square paper FGHJ folded at two of its corners G and J. Given that ∠HLJ = 81° and ∠GKH = 77°, find ∠GHJ.