Question
The figure, not drawn to scale, shows a piece of rectangular paper NPQR folded at two of its corners Q and R. ∠RTS is 10° larger than ∠QTU but it is one-quarter the size of ∠QTR. Find ∠QTR.
3 m

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The figure, not drawn to scale, shows a piece of rectangular paper NPQR folded at two of its corners Q and R. ∠RTS is 10° larger than ∠QTU but it is one-quarter the size of ∠QTR. Find ∠QTR.