Cancer Staging. Staging is the process of finding out how much cancer is in a personâs body and where itâs located. Itâs how the doctor determines the stage of a personâs cancer. For most types of cancer, doctors use staging information to help plan treatment and to predict a personâs outlook (prognosis). Although each personâs situation is different, cancers with the same stage tend to have similar outlooks and are often treated the same way.
As the other answers, the distance of Boston marathon is 26.2 miles or 42.195 kilometers, just like all other marathon. But you need run really fast to be qualified to take part in Boston marathon, that will take a long time, that would be years long.
The 42.195 kilometres (26.219 mi) length of the marathon was not fixed before the 1924 Paris Olympics, and the Boston course varied as well.Prior to 1924 the course distance was approximately 24.5 miles (39.4 km).he 42.195 kilometres (26.219 mi) length of the marathon was not fixed before the 1924 Paris Olympics, and the Boston course varied as well.