Question

triangle abc is congruent to △abc by the hl theorem. what single rigid transformation maps △abc onto △abc? translation rotation reflection dilation

Explanation:

A reflection is a rigid - transformation that flips a figure over a line. In this case, since △ABC and △A'BC' are congruent and have a mirror - like orientation, a reflection over a line (presumably passing through point B and perpendicular to the line segment AA') would map △ABC onto △A'BC'. A translation moves a figure without rotation or reflection, a rotation turns a figure around a point, and a dilation changes the size of a figure (non - rigid).

Answer:

C. reflection