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.
Mt. Vernon Profile. Geography: Jefferson County is located in the heart of Southern Illinois at the junction of Interstates 57 and 64. The City is one hour east of St. Louis, Mo., one hour west of Evansville, Ind., ninety minutes north of Paducah, KY and two hours south of Champaign, IL.