Answer:
1. 32
2. 24
3. 
4. 
5. 15
6. 
Step-by-step explanation:
1. 4÷ 
2. 6÷
3.
÷4=
4.
÷4=
5. 5÷
6.
÷5=
Answer: the circumference is the perimeter of a circle or ellipse. That is, the circumference would be the arc length of the circle, as if it were opened up and straightened out to a line segment. More generally, the perimeter is the curve length around any closed figure.