1 Equilateral triangle: An equilateral triangle is one in which all three sides have the same length. 2  Isoceles triangle: An isoceles triangle is one in which two sides have the same length.  Scalene triangle: A scalene triangle is one in which all three sides have different lengths.
Western Springs, Illinois. Western Springs is a village located in Cook County, Illinois, United States and is a suburb of Chicago. As of the 2010 census, the village had a total population of 12,975. It is twinned with Rugeley, United Kingdom.
Willowbrook, Will County, Illinois. For the village in DuPage County, see Willowbrook, DuPage County, Illinois. Willowbrook is an unincorporated census-designated place in Will County, Illinois, United States. The population was 2,076 at the 2010 census. Geography.