Respostas

2014-04-22T21:55:22-03:00
Se 1 quilômetro tem 1000 m² e 1 are 100 mV

A = ares

A = 1000 / 100
A = 10 ares

se 1 hectare tem 100 ares e 1 km
² 10 ares

1 hectare _____________ 100 ares
x hectare _____________ 10 ares

100x = 10
x = 10 / 100
x = 0,10 hectare