<span>most lakes were formed from : melting glaciers
When glaciers melt, the ice that cover it will started to turn into liquid. The force of Gravity will bring this liquid onto the holes on the surface of earth and filling it with water, which is the lakes that we are commonly see</span>
We simply calculate a ratio of the lengths of two matching sides of two polygons to determine the scaling factor. This is known as the scale factor, and the polygons are similar if the ratio is the same for all matching sides.