Changing area. Last year Otto's garden was square. This year he plans to make it smaller by shortening one side 5 feet and the other 8 feet.

Changing area. Last year Otto's garden was square. This year he plans to make it smaller by shortening one side 5 feet and the other 8 feet. If the area of the smaller garden will be 180 square feet, then what was the size of Otto's garden last year