The circumference is pi times diameter, so put 25.12 over pi to get the diameter. That would be 8. Then divide by 2 to get the radius. That would be 4
Vertex: (2,1)
axis of symmetry: (0,2)
direction of opening: up
not sure what optimal value is.
y-intercept: (0,5)
not sure what the step pattern is.
Answer:
Step-by-step explanation:
Given
The diameter of a circle is
So, the radius is
The circumference is given by
Insert the values
Thus, the circumference of the circle is