Question 12Let $ S $ be the set of sides and diagonals of a regular pentagon. A pair of elements of $ S $ are selected at random without replacement. What is the probability that the two chosen segments have the same length?$\dfrac{2}5 $$\dfrac{4}9 $$\dfrac{1}2 $$\dfrac{5}9 $$\dfrac{4}5 $