The two figures below are similar. What is
the length of side GH?
help asap!

Answer: A. 3 units
Step-by-step explanation:
Since the two figures are similar, that means their side lengths are proportional.
Therefore, [tex]\frac{CB}{KF} = \frac{EA}{GH}[/tex].
We are given the value for 3 of these side lengths.
Thus, [tex]\frac{10}{5} = \frac{6}{GH}[/tex].
We can cross multiply:
10 GH = 30
Divide both sides by 10:
GH = 3 units