That is an important theorem in geometry: if two lines intersect to form adjacent congruent angles, then the lines are perpendicular. Those congruent angles would be right angâ¦les.
Williams later became chief surgeon of the Freedmenâs Hospital. Daniel Hale Williams III was born on January 18, 1856, in Hollidaysburg, Pennsylvania, to Sarah Price Williams and Daniel Hale Williams II. The couple had several children, with the elder Daniel H. Williams inheriting a barber business.
Nathan Hale. I only regret that I have but one life to lose for my country. Nathan Hale (6 June 1755 â 22 September 1776) was an American soldier and spy for the Continental Army during the American Revolutionary War. He volunteered for an intelligence-gathering mission in New York City but was captured by the British and executed.