Kak tolong pake caranya ya please

1. 1/2 x 22/7 x 28 cm x 28 cm = 1232 cm²

2. 22/7×21 cmx21 cmx15 cm= 20.790 cm3

3. Volume balok:
p x l x t
4 cm x 6 cm x 4 cm= 96 cm3
Volume kubus:
4 cm x 4 cm x 4 cm = 64 cm3
Volume gabungan=
96 cm3 + 64 cm3 = 160 cm3