1. A reflection maps A to B and B to C. Given AB=12, find AC.
2. A dilation with scale factor -3 maps X to X' and Y to Y'. Given X'Y'=2, find XY.
3. As shown in the diagram, angle MOL = 30 degrees and A is a point inside angle MOL with OA=6. Let B and C be points on rays OM and OL respectively. Find the smallest possible perimeter of triangle ABC.