Translation of a 2d shape.. due in tomorrow, ! xx

Ineed to know the answer to this algebra question.

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?