Tolong bantu dong Kak mau dikumpul cepet nih no 7-10
Jawaban:
7). 1dm³ + 1 liter
r = 90 cm = 90 : 10 = 9dm
V = r × r × r
= 9 × 9 × 9
= 729 dm³
= 729 liter
8). banyak air tiap bagian
= 2/3 × 1.944
= 3.888/3
=1.296 liter
=1.296 dm³
V = r³
r =³√V
r =³√1.296
r = 36 cm
9).V = r³
= 12 × 12 × 12
= 1.728 dm³
= 1.728 liter
banyak air untuk memnuhi bak
=1.728 : 2
=864 liter
10).V = p × l × t
= 12m × 5m ×2m
= 120 m³
= 120.000 dm³
= 120.000 liter
jumlah air di dalam kolam
= 3/5 × 120.000
= 3 × 24.000
= 72.000 liter