Question

Bài 1:

\(a.4ha=...m^2;20ha=...m^2\)

\(b.1km^2=...ha;15km^2=...ha\)

Answer 1

a) 4ha=40000m²

20ha=200000m²

1km²=100ha

15km²=1500ha

Answer 2

\(a.4ha=40.000m^2\)

→ 1ha = 1hm²; 1ha = 10.000 m²; 4ha = 40.000 m²

\(20ha=200.000m^2\)

→ 1ha = 1hm²; 1ha = 10.000 m²; 20ha = 200.000 m²

\(b.1km^2=100ha;15km^2=1500ha\)

→ 1km² = 100ha; 15km²= 100 x 15 = 1500ha