Answer:
Radius: 4.25 in
Circumference: 26.69 in
Explanation:
We Know
D = 8
in
r = ?
C = ?
Let's solve
R = 1/2 · d
1/2 · 8.5 = 4.25 in
So, the radius is 4.25 in
Circumference of circle = d · 3.14
8.5 · 3.14 = 26.69 in
So, the circumference of the circle is 26.69 in