No 1-2 cari volume dan luas permukaan 3-10 cari volume saja tolongg :) ...........
Yusrin091
1. Volume balok = p x l x t = 80 x 40 x 50 = 160.000 cm³ Luas permukaan balok = 2(pl + pt + lt) = 2{(80x40) + (80x50) + (40x50)} = 2(3200 + 4000 + 2000) = 2(9200) = 18.400 cm³ 2. Volume kubus = s³ = 50³ = 125.000cm³ Luas permukaan kubus = 6s² = 6 x 50² = 6 x 2500 = 15.000cm² 3. Volume prisma = L alas x t = 1/2 x 30 x 40 x 20 = 12.000 cm³ 4. volume prisma = 1/2 x 40 x 60 x 80 = 96.000cm³ 5. Volume = 1/2 x 6 x 8 x 18 = 432 dm³ 6. (digambar kurang 1 ukuran di bgn trapesium..) 7. Volume = volume balok + volume prisma = (6 x 5 x 4) + (1/2 x 5 x 3 x 6) = 120 + 45 = 165 cm³ 8. (kurang mengerti gambar) 9. Volume tabung = (22/7 x 14²) x 20 = 12.320 cm³ 10. Volume tabung = (22/7 x 3,5²) x 16 = 616 dm³ 11. Volume tabung = (22/7 x 7²) x 10 = 1.540 dm³
= 80 x 40 x 50
= 160.000 cm³
Luas permukaan balok = 2(pl + pt + lt)
= 2{(80x40) + (80x50) + (40x50)}
= 2(3200 + 4000 + 2000)
= 2(9200)
= 18.400 cm³
2. Volume kubus = s³ = 50³ = 125.000cm³
Luas permukaan kubus = 6s² = 6 x 50² = 6 x 2500 = 15.000cm²
3. Volume prisma = L alas x t
= 1/2 x 30 x 40 x 20
= 12.000 cm³
4. volume prisma = 1/2 x 40 x 60 x 80 = 96.000cm³
5. Volume = 1/2 x 6 x 8 x 18 = 432 dm³
6. (digambar kurang 1 ukuran di bgn trapesium..)
7. Volume = volume balok + volume prisma
= (6 x 5 x 4) + (1/2 x 5 x 3 x 6)
= 120 + 45
= 165 cm³
8. (kurang mengerti gambar)
9. Volume tabung = (22/7 x 14²) x 20
= 12.320 cm³
10. Volume tabung = (22/7 x 3,5²) x 16
= 616 dm³
11. Volume tabung = (22/7 x 7²) x 10
= 1.540 dm³