volume bangun gabungan disamping adalah

V. Kubus
= s × s × s.
= 5 × 5 × 5.
= 125cm3.

V. Limas
= 1/3 × L. Alas × t.
= 1/3 × s × s × t.
= 1/3 × 5 × 5 × 3.
= 1/3 × 75.
= 25cm3.

V. Seluruhnya
= 125 + 25.
= 150cm3.

Jawaban : C.