tolong jawab... Jangan ngasal

Bab Bangun Ruang
Matematika SD Kelas VI

1] kubus
a] jumlah panjang rusuk kubus = 12s = 144
s = 144/12
s = 12 cm

jadi, panjang sisi kubus = 12 cm

b] volume = s x s x s
volume = 12 x 12 x 12
volume = 1.728 cm³

2] kubus
volume = s³ = 125
s = ∛125
s = 5 cm