Question
The figure shows a piece of square paper CDEF folded at two of its corners C and E. ∠CGF is 4 times as large as ∠CFG and ∠EFH is 10° smaller than ∠CFG. Find ∠CFE.
4 m

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The figure shows a piece of square paper CDEF folded at two of its corners C and E. ∠CGF is 4 times as large as ∠CFG and ∠EFH is 10° smaller than ∠CFG. Find ∠CFE.