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Verified answer
7. Vol = L.alas(segitiga)× tinggi prisma=(½×a×t)×25
=(½×8×10)×25
=1000 cm3
8. Vol = L.alas×t
144 =12×t
12=tinggi prisma
1/2×8×10×25= 40 × 25= hasilnya 1000cm3
8.