Question

Two parallel lines are 7 units apart. If you

reflect a shape over both, how far apart will the
preimage and final image be?

Answer 1

14 units

Explanation:

We apply the Theorem of reflection over parallel lines.

Theorem: The composition of two reflections over parallel lines that are h units apart is the same as a translation of 2h units.

Given that the two parallel lines are 7 units apart

h=7 units

2h= 2 X 7 =14 units

Therefore, the preimage and the final image will be 14 units apart.