Question
The figure shows a piece of square paper QRST folded at two of its corners R and T. Given that ∠SVT = 77° and ∠RUS = 73°, find ∠RST.
3 m

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The figure shows a piece of square paper QRST folded at two of its corners R and T. Given that ∠SVT = 77° and ∠RUS = 73°, find ∠RST.