Answer:
V = 8.6 in^3
Step-by-step explanation:
The circumference is given by
C = 2 * pi *r
8 = 2 * pi *r
Divide each side by 2pi
8 /2pi = r
Using 3.14 for pi
1.27388535 = r
The volume of a sphere is given by
V = 4/3 pi r^3
V = 4/3 (3.14) (1.27388535)^3
V =8.654847391
To the nearest tenth
V = 8.6 in^3
