Mock Set 1 Paper 02 Calculator

\begin{aligned} &\text{Triangles A and B are congruent, so the transformation is isometric.}\\ &\text{Their orientation is reversed, so it is not a translation or rotation of }180^{\circ}.\\ &\text{Checking corresponding vertices shows }(a,b)\mapsto(b,a),\text{ so each point is mirrored across }y=x.\\ &\therefore\;\text{the single transformation is a reflection in the line }y=x. \end{aligned}