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Verified answer
Sisi miring pada segitiga alasluas permukaan prisma
=2×( 1/2. 9× 12 )+(15+12+9)× 24
= 108+ 864
= 972 cm ^2
b. volume = luas alas × tinggi
= (1/2× 8× 12) × 24
= 1152 cm^3