3 ½ hm2= …a pakek caranya

1 hm²= 100 dam²
1 dam²=1 a
3½hm²=3,5hm²=350 dam²
=350 a

1 hm² = 100 are

Jadi,
3,5 hm² = 3,5 x 100 are
             = 350 are