Answer:
A. 51.2 cm
Step-by-step explanation:
[tex] \boxed{ \bold{formula = 2 \: \pi \: r}}[/tex]
r = 1/2d = 1/2 × 16.3 = 8.15 cm
circumference of the circle = 2 × 3.14 × 8.15
circumference of the circle = 51.182 cm
circumference of the circle = 51.2 cm
