Respuesta :

Answer:

56.57

Step-by-step explanation:

Okay, to find the area of a circle from circumference the formula is A = C^2/4pi

18 x 3.14 = 56.52
56.52^2 = 3194.5104
4 x 3.14 = 12.56

3194.5104/12.56 = 256.34

A = 256.34