Rectangle WXYZ is dilated by a scale factor of 3 to form rectangle W'X'Y'Z'. Side Z'W' measures 99. What is the measure of side ZW?
If rectangle WXYZ is dilated by a scale factor of 3 to form rectangle W'X'Y'Z', then all sides of the original rectangle are multiplied by 3 to get the sides of the new rectangle.
Therefore, if side Z'W' measures 99 in the new rectangle, then side ZW must measure 99 divided by 3, which is 33.
So, the measure of side ZW is 33.