tolong dijawab yh pertanyaanya

Tinggi Limas = 25 - 10 = 15 cm
Volume bangunan = volume balok + volume Limas
= p . l . t + 1/3 . Luas alas . t
= 26 x 8 x 10 + 1/3 x (26 x 8) x 15
= 2080 + 1040
= 3.120 cm^3