Respuesta :

mumsy

Answer:

Step-by-step explanation:

the circumference of a circle,

C=2*3.14*r or, in our case, 2r=d

C=d*3.14

C=18*3.14=56.52 in

Gillruss

C = 3.14 d = 3.14 * 18 = 56.52 inches

Therefore, the circumference of a circle with a diameter of 18 inches is 56.52 inches.