Question

A search plane covers 50 square miles of countryside.How many hectares does the plane search(to the nearest tenth)?

Answer 1

the plane has searched 12,950 hectares. the ratio between hectares to square miles is: 1 hectare is 2.471 acres

Answer 2

we know that

one square mile is equal to
`258.999\ hectares`

so

by proportion

`(258.999)/(1) (hectares)/(square\ miles) =(x)/(50) (hectares)/(square\ miles)\\\\ x=50*258.999= 12,949.95\ hectares`

therefore

the answer is

`12,950\ hectares`