What is the difference between Height and Length? Definition: Height is the measurement of something from base to top. Length is the measurement or extent of the longest side of an object. Vertical vs Horizontal: Height measures a vertical distance. Length measures a horizontal distance. One dimensional Objects:
Ages Of US Presidents. John F. Kennedy is the youngest-ever elected president, aged 43. However, Theodore Roosevelt is the youngest person to ever become president. He was 42 when he succeeded to the presidency, following the assassination of McKinley. Ronald Reagan is the oldest person ever to be elected president. He was 69.
At the time, Reagan was the oldest person elected to the office of the presidency (at age 69) and the oldest president at the time of inauguration, at 69 years, 341 days (Donald Trump surpassed this record when he was elected president at age 70 in November 2016).