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UKMT Junior Mathematical Challenge, 2025

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

The diagram shows the square $PQRS$ and the equilateral triangle $PTS$ . What is the size of the angle $RPT$ ?

(A) $10^{\circ}$ (B) $12^{\circ}$ (C) $15^{\circ}$ (D) $22\frac{1}{2}^{\circ}$ (E) $30^{\circ}$

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