tolong jwabkn pakai cara

d=14cm
t (tabung)=20cm
V(tabung)=22/7 .7 .7 .20
= 154.20
= 3080cm3

d=14cm
t (kerucut)=35-20=15cm
V(kerucut)=1/3 .22/7 .7 .7 .15
=154.5
=770cm3

V(tabung)+V(kerucut)
=3080+770
=3850cm3