(7). The hypotenuse of a right triangle is a diameter of the triangle's circumcircle, so the circumradius is given by. (8). A primitive right triangle is a right triangle having integer sides, , and such that, where is the greatest common divisor.
In July 1984, New York State passed the first mandatory seatbelt law in the nation, followed by New Jersey, Illinois, Missouri, Michigan, and New Mexico. 1 person found this useful.
In New York, where seat belt use became mandatory January 1, 1985, seat belt use rates increased from 16% before the law to 57% 4 months after the law; fatalities decreased 19%, despite a modest increase in mileage driven (4).