please ... bantu jawab sekarang , pakai cara !!!

semoga membantu teman

dik :
uk. balok = 21cm × 13cm × 17cm
uk. kubus = 13cm

dit :
volume gabungan bangun ?

jwb :
v. balok = p × l × t
v. balok = 21 × 13 × 17
v. balok = 4.641 cm^3

v. kubus = s^3
v. kubus = 13^3
v. kubus = 2.197 cm^3

v. balok + v. kubus = 4.641 + 2.197 = 6.838 cm^3

Jawabannya 6.838 cm^3 (b)