Respuesta :

Answer:

343pi^3

Step-by-step explanation:

Volume of a cone = 1/3(nr^2h)

n = 22/7

r = radius  

h = height

Base area = area of a circle

Area of a circle = πr²

49 pi = πr²

r² = 49

r = 7

h = 7 x 3 = 21

volume = 1/3 x 21 x 7^2 = 343pi