no. 23, 24, 25 tolong bantu y #dgn carany

23. 8640 = 5x × 3x × 9x
8640 ÷ 135 = x pangkat 3
3✓64 = x
4 = x
p = 4 × 5 = 20
l = 3 × 5 = 15
t = 9 × 5 = 45
Lp = 2( 20 × 15 + 15 × 45 + 20 × 45)
= 2(300 + 675 + 900)
= 2 × 1875 = 3750 cm
24. V sebelumnya = 18 × 18 × 3
= 972 cm
972 + 648 = 1620cm
1620 = 18 × 18 × t
1620 ÷ 324 = t
5 = t
25.V logam = 4 × 4 × 4
= 64 cm
V air = 10 × 8 × 8
= 640 cm
Total = 640 + 64 = 704
704 = 10 × 8 × t
704 ÷ 80 = t
8, 8 = t