(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.
Best Answer: The U.S. National Highway Safety Bureau first required automobile manufacturers to install lap belts for all seats and shoulder belts for front seats in 1968. However, most Americans did not regularly use safety belts until 1984, when the first state laws were passed mandating seat belt use...