In this task, you are given two sets, and you need to count the number of elements at the intersection of two given sets.  A Set is shown by two curly braces and comma-separated numbers inside, like {1, 2, 3}. The intersection of two given sets is the largest set which contains all the elements that are common to both sets. To find the intersection of two given sets, A and B is a set consisting of all the elements common to both A and B.

Set1: '{1, 6, 9, 12, 13, 20}', Set2: '{1, 6, 7, 8, 14, 15, 19}'. How many elements are there in the intersection of Set1 and Set2 ?
2
Set1 = {1, 6, 9, 12, 13, 20}\nSet2 = {1, 6, 7, 8 ,14 ,15 ,19}\n\nThe intersection of two sets contains only the elements that are common to both sets. Therefore we can see that Set1 and Set2 has two common elements which are 1 and 6..