Question

O terreno da D. Antonia tem 8,4 hm de frente por 2,4 hm de fundo. Calcule quantos hectares possui esse terreno.

Answer 1

$\Large\boxed{\begin{array}{l}\sf 8,4\,hm=840\,m\\\sf 2,4\,hm=240\,m\\\sf A=840\cdot240\\\sf A=201~600\,m^2\\\sf A=201\,600\,m^2\div10~000\\\sf A=20,16\,hec\end{array}}$