Respuesta :

Answer:

3.14

Step-by-step explanation:

Answer:

The formula is pie times the radius by the second power

Step-by-step explanation:

Radius is half of the circumference; so 15/ 2 equals 7.5

7.5 times pie (3.14) equals 23.55

now times 23.55 by 23.55 and you will get 554.6025