mencari volume prisma tegak segitiga nomor 4,5,6

Volume Prisma = Luas alas × Tinggi Prisma

4) volume = ( alas × tinggi ÷ 2 ) × 20
volume = (16 × 12 ÷ 2) × 20
volume = 96 × 20
volume = 1920 dm³


5) volume = (alas × tinggi÷2) × 38
volume = (20 × 15 ÷ 2) × 38
volume = 150 × 38
volume = 5700 cm³


6)alas = 1,2 m >> 12 dm
tinggi = 0,9 m >> 9 dm
volume = (alas × tinggi ÷ 2) × 18
volume = (12 × 9 ÷ 2) × 18
Volume = 54 × 18
Volume = 972 dm³ >> 0,972 m³

4.1/2×a×b×t
=1/2×16×12×20
=1920dm3

5.1/2×a×b×t
=1/2×20×15×38
=5700cm3

6.1/2×a×b×t
=1/2×1,2×0,9×18dm
=1/2×1,2×0,9×1,8
=0,972m3

klo ada yg salah maaf yaa