volume balok = 10 x 10 x 18 = 1800
v kerucut = 1/3 x luas alas x tinggi kerucut
= 1/3 x 3,14 x 5 x 5 x 12
= 314
1800 - 314 = 1486
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volume balok = 10 x 10 x 18 = 1800
v kerucut = 1/3 x luas alas x tinggi kerucut
= 1/3 x 3,14 x 5 x 5 x 12
= 314
1800 - 314 = 1486