Question

The scale of a map is 1:50000. A lake on the map is 6.16cm². find the actual area of the lake in hectares.

Answer 1

1.54 [km²].

Explanation:

1) the given scale is for linear functions, the given area of the lake is quadratic function. According to this

2) actual area = given area *50000 *50000;

3) the given area=0.000616 [m²],

the actual area=0.000616*50000*50000=1540000 [m²] or 1.54 [km²].