Answer:
6.3
Step-by-step explanation:
i had the same question for school
Where the angle bisectors intersect determines the center of the incircle.
Where the side perpendicular bisectors intersect determines the center of the center of the circumcircle. From these definitions, you should be able to determine the points you want.
When n is the nth term in the sequence, n squared is the rule.
The next two terms are 64, 81
Good luck!