Question
The figure shows a piece of square paper FGHJ folded at two of its corners F and H. ∠FKJ is 4 times as large as ∠FJK and ∠HJL is 10° smaller than ∠FJK. Find ∠FJH.
4 m

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The figure shows a piece of square paper FGHJ folded at two of its corners F and H. ∠FKJ is 4 times as large as ∠FJK and ∠HJL is 10° smaller than ∠FJK. Find ∠FJH.