Respuesta :

5.  2 x 3.14 x 4 = 25.12 in.


6. 80 = 3.14 x d

d = 80/3.14  = 25.48 ft


7. 3.14 x 9.6^2 = 289.38m^2

5. 12.56in 

6. 25.48 ft

7. 30.14m^2