tolong kak jawab no yang dilingkari

1) Diketahui : rusuk = 25 cm
Ditanya : volume kubus = ....? cm³
Dijawab : volume kubus = r^3 = 25 x 25 x 25 = 15.625 cm³
4) Diketahui : Π(phi) = 22/7 r = ½ x d = ½ x 56 = 28 cm t = 15 cm
Ditanya : volume tabung = ....? cm³
Dijawab : volume tabung = Π x r^2 x t = 22/7 x 28 x 28 x 15 = 36.960 cm³
7) Diketahui = p = 9 cm l = 6 cm L = p x l = 9 x 6 = 54 cm² t = 15 cm
Ditanya = volume limas = ....? cm³
Dijawab = volume limas = ⅓ x L x t = ⅓ x 54 x 15 = 270 cm³