Respuesta :

84.78
Explanation:
13.5•2=27
27•3.14=84.78

Answer:

c. 84.78 mm

Step-by-step explanation:

Circumference of a circle

  • 2πr

Given

  • radius = 13.5 mm

Solving

  • 2 x 3.14 x 13.5
  • 27 x 3.14
  • 84.78 mm