Question

A regular pentagon with side lengths of 9 units is translated 2 units to the left. What is the length of one side of the pentagon after translation, in units?

Answer 1

The length of the sides would still be 9 unit because it is not effecting the scale of the object, just transfer it from one place to other.

Answer 2

Please note that "A translation is an isometry that maps all points of a figure the same distance in the same direction". Thus, a translation will never change the dimensions of any geometric figure. It will just shift the figure from one place to the other keeping it's dimensions the same.

Therefore, even when a regular pentagon with side lengths of 9 units is translated 2 units to the left, the length of one side of the pentagon after translation will still be 9 units.