no.1 tuh gimna ya tolong dong dibantu

V=π×r×r×t
=22/7×3,5×3,5×10
=22/7×12,25×10
=22/7 ×122,5
=2695/7
=3850 cm³..

dik: t=10 cm
d=7 cm
r=1/2.7= 3.5 cm
phi=22/7


dit: vtab=....???

vtab= phi.r.r 2.t
= 22/7.3,5.3,5.10
=11.3,5.10
=11.35
=385