Tolong tolong tolong bantu ya pakai cara​

diketahui =

t = 30 cm

d = 20 cm

r = 10 cm

ditanya = Volume?

jawab =

V = phi . r . r . t

V = 3,14 . 10 . 10 . 30

V = 314 . 30

V = 9.420 cm³