Answer:
The answer is 3
Step-by-step explanation:
since all of the output numbers can be reached by adding 3
Answer: 3/7
Step-by-step explanation:
im not sure but i thinks its 3/7

Then

which is a disk of radius 1, hence with area
.
The name of the shape is an octagon. Since there are 9 identical tiles and you have 72 sides, you would divide 72 by 9 and get 8. And shape that has 8 sides would be an octagon.