Kalau volume tabung 1848 dm3 dan tinggi nya 12 dm berapa jari-jari nya plizzz

Volume = 1.848 dm³
t = 12 dm

V = π.r².t
1.848 = 22/7 x r² x 12
1.848 = 264/7 x r²
r² = 1.848 : 264 / 7
r² = 1.848  x 7/264
r² = 49
r = √49
r = 7 dm

1848 = 22/7 x r² x 12

r² = 1848 x 7 / (22 x 12)

r² = 49

r= 7dm