Tolong jawab soal nomor 2 dan 3 yaa, pakai cara :)

2) v.limas = 1/3 . alas .t
= 1/3 . 5 . 5 .4
= 33,3 . 2
= 66,6
v balok = p . l .t
= 10 . 4 . 4
= 160
v. bangun = 66,6 + 160
= 226,6
3) V.limas = 1/3 . 10 . 10 . 12 = 400
V. kubus = 10 . 10 . 10 = 1000
V. balok = 20 . 10 . 12 = 2400
V. bangun = 400 + 1000 + 2400 =3800
semoga membantu ^_^