tolong ya dari nomer 7 sampe nomer 11

7. Bilangan → Faktor → Faktor prima
a. 28 → 1, 2, 4, 7, 14, 28 → 2, 7
b. 56 → 1, 2, 4, 7, 8, 14, 28, 56 → 2, 7
c. 64 → 1, 2, 4, 8, 16, 32, 64 → 2
d. 72 → 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 → 2, 3
e. 120 → 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120 → 2, 3, 5
8. ³√8.000 × ³√64
= 20 × 4
= 80
9. Luas alas × tinggi
= 146 × 36
= 5.256 cm³
10. Luas alas × tinggi
= (πr²) × t
= (22/7 × 14 × 14) × 20
= 616 × 20
= 12.320 cm³
11. → ∆ besar + 2 ∆ kecil + 2 []
= (alas×tinggi / 2) + 2×(alas×tinggi / 2) + 2×(pjng×lbr)
= (40×25 / 2) + 2×(10×12 / 2) + 2×(20×12)
= 500 + (2 ×60) + (2×240)
= 500 + 120 + 480
= 1.100 cm²