Answer:
- diameter: 16 cm
- circumference: 16π cm ≈ 50.27 cm
Explanation:
The diameter is twice the radius:
d = 2r = 2(8 cm)
d = 16 cm
The diameter is 16 cm.
__
The circumference is pi times the diameter.
C = πd
C = π(16 cm)
C = 16π cm ≈ 50.27 cm
The circumference is 16π cm, about 50.27 cm.